Infosys Puzzles
1) there are 4 links in a golden chain.one has 5 links,other has 4 links and other 3 linkks.goldsmith takes 50.00paise to open the link and 1.00/- to attach the link.what is least cost to bake whole bracelet?
2)a square is of side 1 km.a man travels first 2 sides with 30mph and third side with 60kmph.what is the speed that man has to travel the fourth side if average speed is 60kmph?
3) there are 600 pages.there is 1 error on averagte per page.what is the probability that there are n errors per page?
4) a sheet of metal in the form of a sector of a circle of angle 90 degrees and radius 16cm is folded to form an open conical cup.what is the capacity of the cup?
5)three faces of a fair die are yellow,two faces are red and one blue.the die is tosed three times.what is the probability that the colours yellow,red and blue appear in the first,second and third tosses respectively?
6)at the foot of the mountain the elevation of its summit is 45 degrees.after ascending one km towards the mountan upon an incline of 30 degres,elevation changes to 60 degrees.find the height of the mountain?
7)two litres of mixture of alchohal and water contain 10% water.this is added to 4 litres of another mixture containing 8% water and half a litre of water is then added to the whole.find the percentage of water in the resulting mixture.
8)a man spends 1/3rd of his salary on food.of the remaining he spends 1/4th on rent and 1/5th on clothes.if he is left with 1760,then how much salary does he earn?
9)an ordinary fruit contains 72% water and 28% fruit.a dry fruit contains 20% water and 80% fruit.from 100grams of an ordinary fruit how much of dry fruit can be obtained?
10)a man from the top of a light house sees a boat with an angle of depression of 30 degrees. it takes 10 minutes for the angle of depression to change from 30 degrees to 60 degrees.in what time does the boat reach from that point to the light house?
11)if a manufacture sold the goods to wholesaler at 15% profit,wholesaler sells the same goods at 25% profit to retailer,again retailer sells the goods to customer at 20% profit.if customer buy the goods at 135rs then what was the manufacturing cost?
12)in a school number of students who [assed are three times the number of students who failed.if the number of students would have been decreased by 16 and the number of students who failed is increased by 6,then the number of students who would have pased are 80.then find out the number of students in the school.
13) A man hires a taxi to meet him at the railroad station at 3pm to take him to an appointment.He catches an earlier train and arrives at 2pm.He decides to start walking, and is picked up in route by the taxi.He arrives 20 minutes early for the appointment.How long did he walk?
a)45min b)50min c)24min d)36min e)none
14). "what day do u go to school,Henry?"asked his grany one day."well,"Henry replied,"nine days ago,the day before yesterday was three weeks before the second day of term."if Henry had this conversation on sunday,what day of the week did he start school?
a)monday b)tuesday c)wednesday d)thursday 5)friday
15)A bullet was shot from a riffle at an angle of 30' it reached maximum point in ascent in 18sec.what was the initial speed of bullet?
16). the difference between smallest square of a number consisting of all digits 1 to 9 and the largest of the same.
17) thirty men take 20days to complete a job working 9hrs a day.how many hours a day should 40 men work to complete the job?
a)8hrs b)7 1/2hrs c)7 hrs d)9hrs
18) find the smallest number in a G.P whose sum is 38 and product 1728.
a)12 b)20 c)8 d)none
19) a word "ROORKEE" is given to us.what is the probability that same letters will alwys be together?
20) a certain no. of workers can do a piece of work in 25 days,in what time will another set of equal no. of men do a piece of work as great supposing that 2 men of the first set can do as much work in a hour as 3 men in the second set can do in a hour?
a)60days b)75days c)90days d)105days e)none
21) there is 24% increase in income tax rate.it leads to 1%decrease in overall income.what is the rate of tax?
22 )A 25'X45' LAWN. A 2 FOOT LAWN CUTTER. HOW MANY THE PERSON COVERS BY
MOVING THE LAWN CUTTER 1 1/2 ROUNDS.
23) A ship has a ladder which has 6 rungs. The first rung is 1 ft. above water. If tide rises 1 ft for
every 15 min. How many rungs will be under water after 1 hr.
24)A nawab gets out at a railway station 2 earlier to his scheduled arrival. He walks at 3mph speed. At the same time, when he left railway station a cab left his house so as to reach the station just on time. He is walking towards his house. He got his cab on the way and reched his house 1 hr before what everybody thought it as his scheduled arrival. What is the distance between his house and railway station?
1) there are 4 links in a golden chain.one has 5 links,other has 4 links and other 3 linkks.goldsmith takes 50.00paise to open the link and 1.00/- to attach the link.what is least cost to bake whole bracelet?
2)a square is of side 1 km.a man travels first 2 sides with 30mph and third side with 60kmph.what is the speed that man has to travel the fourth side if average speed is 60kmph?
3) there are 600 pages.there is 1 error on averagte per page.what is the probability that there are n errors per page?
4) a sheet of metal in the form of a sector of a circle of angle 90 degrees and radius 16cm is folded to form an open conical cup.what is the capacity of the cup?
5)three faces of a fair die are yellow,two faces are red and one blue.the die is tosed three times.what is the probability that the colours yellow,red and blue appear in the first,second and third tosses respectively?
6)at the foot of the mountain the elevation of its summit is 45 degrees.after ascending one km towards the mountan upon an incline of 30 degres,elevation changes to 60 degrees.find the height of the mountain?
7)two litres of mixture of alchohal and water contain 10% water.this is added to 4 litres of another mixture containing 8% water and half a litre of water is then added to the whole.find the percentage of water in the resulting mixture.
8)a man spends 1/3rd of his salary on food.of the remaining he spends 1/4th on rent and 1/5th on clothes.if he is left with 1760,then how much salary does he earn?
9)an ordinary fruit contains 72% water and 28% fruit.a dry fruit contains 20% water and 80% fruit.from 100grams of an ordinary fruit how much of dry fruit can be obtained?
10)a man from the top of a light house sees a boat with an angle of depression of 30 degrees. it takes 10 minutes for the angle of depression to change from 30 degrees to 60 degrees.in what time does the boat reach from that point to the light house?
11)if a manufacture sold the goods to wholesaler at 15% profit,wholesaler sells the same goods at 25% profit to retailer,again retailer sells the goods to customer at 20% profit.if customer buy the goods at 135rs then what was the manufacturing cost?
12)in a school number of students who [assed are three times the number of students who failed.if the number of students would have been decreased by 16 and the number of students who failed is increased by 6,then the number of students who would have pased are 80.then find out the number of students in the school.
13) A man hires a taxi to meet him at the railroad station at 3pm to take him to an appointment.He catches an earlier train and arrives at 2pm.He decides to start walking, and is picked up in route by the taxi.He arrives 20 minutes early for the appointment.How long did he walk?
a)45min b)50min c)24min d)36min e)none
14). "what day do u go to school,Henry?"asked his grany one day."well,"Henry replied,"nine days ago,the day before yesterday was three weeks before the second day of term."if Henry had this conversation on sunday,what day of the week did he start school?
a)monday b)tuesday c)wednesday d)thursday 5)friday
15)A bullet was shot from a riffle at an angle of 30' it reached maximum point in ascent in 18sec.what was the initial speed of bullet?
16). the difference between smallest square of a number consisting of all digits 1 to 9 and the largest of the same.
17) thirty men take 20days to complete a job working 9hrs a day.how many hours a day should 40 men work to complete the job?
a)8hrs b)7 1/2hrs c)7 hrs d)9hrs
18) find the smallest number in a G.P whose sum is 38 and product 1728.
a)12 b)20 c)8 d)none
19) a word "ROORKEE" is given to us.what is the probability that same letters will alwys be together?
20) a certain no. of workers can do a piece of work in 25 days,in what time will another set of equal no. of men do a piece of work as great supposing that 2 men of the first set can do as much work in a hour as 3 men in the second set can do in a hour?
a)60days b)75days c)90days d)105days e)none
21) there is 24% increase in income tax rate.it leads to 1%decrease in overall income.what is the rate of tax?
22 )A 25'X45' LAWN. A 2 FOOT LAWN CUTTER. HOW MANY THE PERSON COVERS BY
MOVING THE LAWN CUTTER 1 1/2 ROUNDS.
23) A ship has a ladder which has 6 rungs. The first rung is 1 ft. above water. If tide rises 1 ft for
every 15 min. How many rungs will be under water after 1 hr.
24)A nawab gets out at a railway station 2 earlier to his scheduled arrival. He walks at 3mph speed. At the same time, when he left railway station a cab left his house so as to reach the station just on time. He is walking towards his house. He got his cab on the way and reched his house 1 hr before what everybody thought it as his scheduled arrival. What is the distance between his house and railway station?
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Infosys Puzzles
2)a square is of side 1 km.a man travels first 2 sides with 30mph and third side with 60kmph.what is the speed that man has to travel the fourth side if average speed is 60kmph?
3) there are 600 pages.there is 1 error on averagte per page.what is the probability that there are n errors per page?
4) a sheet of metal in the form of a sector of a circle of angle 90 degrees and radius 16cm is folded to form an open conical cup.what is the capacity of the cup?
5)three faces of a fair die are yellow,two faces are red and one blue.the die is tosed three times.what is the probability that the colours yellow,red and blue appear in the first,second and third tosses respectively?
6)at the foot of the mountain the elevation of its summit is 45 degrees.after ascending one km towards the mountan upon an incline of 30 degres,elevation changes to 60 degrees.find the height of the mountain?
7)two litres of mixture of alchohal and water contain 10% water.this is added to 4 litres of another mixture containing 8% water and half a litre of water is then added to the whole.find the percentage of water in the resulting mixture.
8)a man spends 1/3rd of his salary on food.of the remaining he spends 1/4th on rent and 1/5th on clothes.if he is left with 1760,then how much salary does he earn?
9)an ordinary fruit contains 72% water and 28% fruit.a dry fruit contains 20% water and 80% fruit.from 100grams of an ordinary fruit how much of dry fruit can be obtained?
10)a man from the top of a light house sees a boat with an angle of depression of 30 degrees. it takes 10 minutes for the angle of depression to change from 30 degrees to 60 degrees.in what time does the boat reach from that point to the light house?
11)if a manufacture sold the goods to wholesaler at 15% profit,wholesaler sells the same goods at 25% profit to retailer,again retailer sells the goods to customer at 20% profit.if customer buy the goods at 135rs then what was the manufacturing cost?
12)in a school number of students who [assed are three times the number of students who failed.if the number of students would have been decreased by 16 and the number of students who failed is increased by 6,then the number of students who would have pased are 80.then find out the number of students in the school.
13) A man hires a taxi to meet him at the railroad station at 3pm to take him to an appointment.He catches an earlier train and arrives at 2pm.He decides to start walking, and is picked up in route by the taxi.He arrives 20 minutes early for the appointment.How long did he walk?
a)45min b)50min c)24min d)36min e)none
14). "what day do u go to school,Henry?"asked his grany one day."well,"Henry replied,"nine days ago,the day before yesterday was three weeks before the second day of term."if Henry had this conversation on sunday,what day of the week did he start school?
a)monday b)tuesday c)wednesday d)thursday 5)friday
15)A bullet was shot from a riffle at an angle of 30' it reached maximum point in ascent in 18sec.what was the initial speed of bullet?
16). the difference between smallest square of a number consisting of all digits 1 to 9 and the largest of the same.
17) thirty men take 20days to complete a job working 9hrs a day.how many hours a day should 40 men work to complete the job?
a)8hrs b)7 1/2hrs c)7 hrs d)9hrs
18) find the smallest number in a G.P whose sum is 38 and product 1728.
a)12 b)20 c)8 d)none
19) a word "ROORKEE" is given to us.what is the probability that same letters will alwys be together?
20) a certain no. of workers can do a piece of work in 25 days,in what time will another set of equal no. of men do a piece of work as great supposing that 2 men of the first set can do as much work in a hour as 3 men in the second set can do in a hour?
a)60days b)75days c)90days d)105days e)none
21) there is 24% increase in income tax rate.it leads to 1%decrease in overall income.what is the rate of tax?
22 )A 25'X45' LAWN. A 2 FOOT LAWN CUTTER. HOW MANY THE PERSON COVERS BY
MOVING THE LAWN CUTTER 1 1/2 ROUNDS.
23) A ship has a ladder which has 6 rungs. The first rung is 1 ft. above water. If tide rises 1 ft for
every 15 min. How many rungs will be under water after 1 hr.
24)A nawab gets out at a railway station 2 earlier to his scheduled arrival. He walks at 3mph speed. At the same time, when he left railway station a cab left his house so as to reach the station just on time. He is walking towards his house. He got his cab on the way and reched his house 1 hr before what everybody thought it as his scheduled arrival. What is the distance between his house and railway station?
1) there are 4 links in a golden chain.one has 5 links,other has 4 links and other 3 linkks.goldsmith takes 50.00paise to open the link and 1.00/- to attach the link.what is least cost to bake whole bracelet?
2)a square is of side 1 km.a man travels first 2 sides with 30mph and third side with 60kmph.what is the speed that man has to travel the fourth side if average speed is 60kmph?
3) there are 600 pages.there is 1 error on averagte per page.what is the probability that there are n errors per page?
4) a sheet of metal in the form of a sector of a circle of angle 90 degrees and radius 16cm is folded to form an open conical cup.what is the capacity of the cup?
5)three faces of a fair die are yellow,two faces are red and one blue.the die is tosed three times.what is the probability that the colours yellow,red and blue appear in the first,second and third tosses respectively?
6)at the foot of the mountain the elevation of its summit is 45 degrees.after ascending one km towards the mountan upon an incline of 30 degres,elevation changes to 60 degrees.find the height of the mountain?
7)two litres of mixture of alchohal and water contain 10% water.this is added to 4 litres of another mixture containing 8% water and half a litre of water is then added to the whole.find the percentage of water in the resulting mixture.
8)a man spends 1/3rd of his salary on food.of the remaining he spends 1/4th on rent and 1/5th on clothes.if he is left with 1760,then how much salary does he earn?
9)an ordinary fruit contains 72% water and 28% fruit.a dry fruit contains 20% water and 80% fruit.from 100grams of an ordinary fruit how much of dry fruit can be obtained?
10)a man from the top of a light house sees a boat with an angle of depression of 30 degrees. it takes 10 minutes for the angle of depression to change from 30 degrees to 60 degrees.in what time does the boat reach from that point to the light house?
11)if a manufacture sold the goods to wholesaler at 15% profit,wholesaler sells the same goods at 25% profit to retailer,again retailer sells the goods to customer at 20% profit.if customer buy the goods at 135rs then what was the manufacturing cost?
12)in a school number of students who [assed are three times the number of students who failed.if the number of students would have been decreased by 16 and the number of students who failed is increased by 6,then the number of students who would have pased are 80.then find out the number of students in the school.
13) A man hires a taxi to meet him at the railroad station at 3pm to take him to an appointment.He catches an earlier train and arrives at 2pm.He decides to start walking, and is picked up in route by the taxi.He arrives 20 minutes early for the appointment.How long did he walk?
a)45min b)50min c)24min d)36min e)none
14). "what day do u go to school,Henry?"asked his grany one day."well,"Henry replied,"nine days ago,the day before yesterday was three weeks before the second day of term."if Henry had this conversation on sunday,what day of the week did he start school?
a)monday b)tuesday c)wednesday d)thursday 5)friday
15)A bullet was shot from a riffle at an angle of 30' it reached maximum point in ascent in 18sec.what was the initial speed of bullet?
16). the difference between smallest square of a number consisting of all digits 1 to 9 and the largest of the same.
17) thirty men take 20days to complete a job working 9hrs a day.how many hours a day should 40 men work to complete the job?
a)8hrs b)7 1/2hrs c)7 hrs d)9hrs
18) find the smallest number in a G.P whose sum is 38 and product 1728.
a)12 b)20 c)8 d)none
19) a word "ROORKEE" is given to us.what is the probability that same letters will alwys be together?
20) a certain no. of workers can do a piece of work in 25 days,in what time will another set of equal no. of men do a piece of work as great supposing that 2 men of the first set can do as much work in a hour as 3 men in the second set can do in a hour?
a)60days b)75days c)90days d)105days e)none
21) there is 24% increase in income tax rate.it leads to 1%decrease in overall income.what is the rate of tax?
22 )A 25'X45' LAWN. A 2 FOOT LAWN CUTTER. HOW MANY THE PERSON COVERS BY
MOVING THE LAWN CUTTER 1 1/2 ROUNDS.
23) A ship has a ladder which has 6 rungs. The first rung is 1 ft. above water. If tide rises 1 ft for
every 15 min. How many rungs will be under water after 1 hr.
24)A nawab gets out at a railway station 2 earlier to his scheduled arrival. He walks at 3mph speed. At the same time, when he left railway station a cab left his house so as to reach the station just on time. He is walking towards his house. He got his cab on the way and reched his house 1 hr before what everybody thought it as his scheduled arrival. What is the distance between his house and railway station?
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