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In a music concert, I was sitting only 100 feet away from the musicians.The performance was broadcasted. My sister who lives in Banglore also heard the same concert on the radio. I m sure u know that Banglore is over a 1000 miles away from calcutta and also that sound travels at 1100 feet per sec. Do u think there was any difference in the times at which the music was heard by my sister and myself. If yes, Explain?
sabareeswarcsi
- Apr 27th, 2010
His sister who lives in Bangalore will hear it first because radio waves travels much faster than sound waves. To be exact radio waves travel at a speed of 186000 miles per second which is equal to th...
kiranaar10728
- Jun 18th, 2008
As far as iam concerned i think ur sister will hear the note before u.because via satellite the programme will be transmitted as electromagnetic radio waves which travels at a rate of 3*10^8 m/s.but the difference will be negligibly small that it can be picked up neither by u nor by ur sister.
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what is the term3,10,7,8,--,12,9,16.
karthika
- Jul 13th, 2006
3,10,7,8,--,12,9,16Totally 8 termslet number of of terms=n=8add 1st term + n==19 ie)3+16add2nd term + n-1==19 ie)10+9add 3 rd term + n-2 ==19 ie)7+12so 8+?=19ie)11
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There are 4 parties A,B,C,D. There are 3 people x, y, z. X-says A or D will win. Y-says A will not win. Z-says B or D will not win. Only one of them is true. Which party won?
ganeshbhat
- Jan 14th, 2010
A will win, the key is only one of them is true.If we consider the statement 'A will not win' to be true then the statements A or D will win or the statement B or D will win will have to be true...
sachuis2cool
- Sep 7th, 2006
Ans is "A will win"Choose that ans which gives positive ans.means if we choose Y or Z to be true,then we stillremain with 2 choices.That is if Y is true,then either B,C or D will win.So u cant tell fi...
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a man climbs on a hill at 4 miles/hr at the top he turns around and returns at6 miles/hr.total time taken 6 hrs.what is height of hill
ganeshbhat
- Jan 14th, 2010
Let the height of the hill be dthen time taken to climb the hill = d/4 miles per hourtime taken to come down the hill=d/6 miles per hourTotal time=6hrshence d/4+d/6=6d=48
deepali
- Nov 2nd, 2006
total time taken is 6 hr.Speed 4 miles/hr & 6 miles/hrso avg speed is (2*4*6)/(4+6)=4.8now speed=dist/time so dist=speed * timedist= 4.8 *6=28.8dist on one side=28.8/2=14.4 miles
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Infosys Puzzle Questions
Q. There are 5 persons who have won top 5 places in an event olympics one of them asks all the 5 regareding their positions they reply as a: I am not the last b: c is in third place c: e is behind a d: b is in 1st place e: d is not the firstfind positions in order.Q. A says if 75 chickens are sold from what we have now the feed will last for extra 20 days. But B says if we buy additional 100 chickens...
kkguha
- Jan 12th, 2010
There are 5 persons who have won top 5 places in an event olympics one of them asks all the 5 regareding their positions they reply as a: I am not the last b: c is in third place c: e is behind a d: b is in 1st place e: d is not the firstfind positions in order.
paul
- Jul 1st, 2006
correct answer is " becad"cos 'c' is in 3rd place 'e' is behind 'a''b' is firstn 'd' is last
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if 1!+2!+3!………10! in this sum what is the lost digit.
ankit_goyal_1988
- Dec 27th, 2009
Answer is 3Here is the clue.Last digit is1!= 12!= 23!= 64!= 45!= 06!= 07!= 08!= 09!= 010!=0+----------- 13Hence last digit is 3
deepika
- Sep 19th, 2006
Sorry its not 5 its 3
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3.A person started two watches, he observed that after one hour, one watch gains 1 min/hr and the second watch loses 2 min/hr. After how much time will the two watches have a difference of one hour. chetanas.comAns: 20 hrsplz tell me proc for solving such sums
karthi17111987
- Dec 25th, 2009
1st clock +1 min for 1 hr2nd clock -2 min for 1 hrso, after 15hr, 1st clock : +15 min than usual time &nb...
Nandini
- Aug 12th, 2006
The approach for this problem is very simpleLet us assume that two watches were set at 12.00 midnightaccording to problem one watch gains 1 min after one hour and other watch loses two minutes.So at 1...
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Four persons A, B, C and D are playing cards. Each person has one card, laid down on the table below him, which has two different colours on either side.There are 2 red, 2 green and 2 blue. The colours visible on the table are Red, Green, Red and Blue.They see the color on the reverse side and give the following comment.A. Yellow or GreenB. Neither Blue nor GreenC. Blue or YellowD. Blue or YellowGiven that out of the 4 people, 2 always lie find out the colours on the cards each person.
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there are four ships sailing on the sea of an infinite Watery planet with a plane surface. Assume that the ships are made of air And one can pass through another without disturbing its motion. Suppose The ships sail in straight lines and five of the six possible "collisions" are Known to happen. What else can you say about this situation? Specifically, will the Sixth collision occur, not occur, or does it depend on something else?
Jas100
- Dec 11th, 2009
Sixth collision can occur is there are three intersection points on every straight line for every shipone line must intersect three lines .
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Given two billion distinct points on a plane such That no three are collinear. I color any half of them red and the Remaining blue. Is it always possible for you to join each red point to one (and Only one) blue point by means of line segments such that no two line segments Intersect?
abhinavmishra85
- Dec 9th, 2009
Yes, but these line segments will have one common end point that is the blue point.
manojthesingham
- Dec 4th, 2009
____________________red___blue___________________red_____blue__________________red_______blue_________________red_________blue________________red___________blue_______________red_____________blue_____...
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Find the Word
Rich man keeps me in the pocket, Poor man throws me away, Kids eat me, The answer is --u--e--l ( a 9 letter word). Find the word.
ak_1234
- Dec 4th, 2009
Answer is bluepearl Rich man knows its value so he keeps it in his pocket Poor man unaware of it throws it away Kids will swallow it thinking it as candy This is answer currently popped up in my mind Any other better answers?
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Consider this sentence: eleven plus two = twelve plus one. The question is, in what Non-mathematical way does the equation also make sense?
sirisha_tallapureddy
- Nov 25th, 2009
Eleven+Two=Twelve+OneAll the letters on LHS has corresponding matching letters on the RHS.
swetha
- Feb 1st, 2006
It means we have to add 2 letters to the LHS let us take 'TW' and 1 letter to RHS let it be 'N' therefore both will be equal by name
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xxxxyyyyzzzz------yxxxz------(Addition)
x=? y=? z=?
sachuis2cool
- Sep 7th, 2006
I got the simplest method...I'll explain it step by step...seems to be lenghty but it is not.we know,Y is carried and any 2 digits between 0 to 9 sum up to a number less than 20.So Y must be 1ie. Y=1....
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In India, water lillies grow extremely rapidly in the ponds. If the growth enlarged so much that each day it covered a surface double that which it filled the day before, so that at the end of the 20th day if entirely covered the pond, in which it grew, how long would it take water lillies of the same size at the outset and at the same rate of growth to cover the same pond?
zhangchaofan
- Nov 10th, 2009
Need 21 days. Because, the double increase in each day. So, cover the same size of pond is equal to the double increase.
shahdadpuri
- Jun 24th, 2008
We already have lillies that have covered the pond in 20days... now they would cover another pond of double the size in one more day... hence another pond of same size would be covered in half a day.
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A thief is capable of running 20kms a day.
A thief is capable of running 20kms a day. A policeman who is to catch the thief can run 1km on the 1st day, 2kms on the 2nd day and so on. Then how long will it take the policeman to catch the thief?
moveon
- Nov 5th, 2009
A thief can run 20 kms a day.Let thief be catched in x daysso total km is 20*xkm run by policeman 1+2+3+4.........+x is an A.P is x(x+1)/2equating both20*x=x(x+1)/2x=39
navateja
- Jul 25th, 2009
Let the no. of days needed is x.In x days, the theif runs 20x kms.On day 1, police runs 1km.On day 2, he runs 2 kms.Similarly, on the xth day, he runs x kms.In the entire x days, police runs (1+2+3+.....
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Length and Breath of Rectangle
The length and breath of of a rectangle is in the ratio 7:5.if the length decreases by 5 and the breath increases by 2,then the area of it was 65 sqkm.then find the actual length and breath of the rectangle.
kirubakaran51967
- Jul 25th, 2009
The formula for area of rectangle is breath*length. It is given that l/b=7/5 From that l=7/5*bLength decreases by 5 and breath increases by 2.so now the new area will be A=(l-5)*(b+2)sub the value of...
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A short man takes 3 steps to a tall man’s 2 steps. They both start out on the left foot. Hwo many steps do they have to take before they r both stepping out on the right foot together?
cheruku.sai
- Jul 14th, 2009
After 6 steps of short man and 4 steps of the tall man they both come together with right step.
Rathinavelu
- Oct 23rd, 2006
They will never step out on the right foot together.
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There are two trains. One from New York to Washington and second from Washington to New York. The total journey to a destination takes 5 hours. A train from New York to Washington leaves on hour at every hour The train from Washington to New York leaves an hour and on half an hour. How many trains will be passing if you are traveling from New York to Washington?
ankit_20101
- Oct 23rd, 2008
The answer is 6. 3 trains would leave from the Washington during the total journey from New York and the train will also meet 3 trains that left at 4:30-3:00 and 1:30 hrs earlier from Washington.
niraj
- Feb 27th, 2007
If we assume the speed of the trains are equal then after 2.30 hrs the first train will meet and after every 15 minute it will meet one train.So finally total 10 train it will meet.
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You have with you (1) a string of 1 meter length (2) 1 Kg weight (3) a watch. Now you want to find out the height of the Tallest tower -- say cn tower of toronto. How many ways can you devise to Measure it? They do not have to be practical, but scientifically Correct. Up to seven methods are child’s play.
sreedhar_28
- Oct 13th, 2008
To find the height scientifically,s=ut+.5at^2u=0, t=time taken by the weight from building top to bottom in sec. use watch and find ta=9.8m/s^2s=4.9*t^2 m
piyus kumar
- Jul 27th, 2008
Attach the 1 kg weight to the string and calculate its time period by the help of watch now using the formula T=2*pi*(l/g)^(1/2) calculate the value of g(say g1) same thing we can do after reaching th...
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Head and Tail
I live in water, if you cut my head am at your doors, if you cut my tail am a fruit. if you cut both head and tail am with you
swapna suram
- Aug 19th, 2008
Well its Pearl ---- lives in water earl ---- when cut the head ( at ur door)Pear ---- when you cut tail (i am fruit)ear ---- cut both head and tail (i am with you)
