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Some are 1 kg weights and some are 2 kg weights. The sum of the weights is 260.What is the number of 1kg weights?
Ans : 40
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Answered by: Suman
- Jan 25th, 2007
There are a total of 150 weights. Let the number of 1 Kg weights be 'x'. Then the number of 2 Kg weights is '150 - x'. The sum of the weights is 260 Kg. ie [x * 1 + (150 - x) * 2] = 260. By solving this you will get 'x' as 40.
Ankita Mishra
- Jan 14th, 2010
Well this ans is absolutely fine...but i just want to make a slight changei.e.There are a total of 150 weights. Let the number of 1 Kg weights be 'x'. Then the number of 2 Kg weights is '150 - x'. The...
Suman
- Jan 25th, 2007
There are a total of 150 weights. Let the number of 1 Kg weights be 'x'. Then the number of 2 Kg weights is '150 - x'. The sum of the weights is 260 Kg. ie [x * 1 + (150 - x) * 2] = 260. By solving this you will get 'x' as 40.
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Moving Ship
A ship started from a port and moving 'I' miles per hour. And other ships strated from 'L' and moving with 'H' miles per hour.At the place where these two ships will meet |---|---|---|---|---|---|port G H I J K L
anon1987
- Dec 7th, 2009
Let us consider that the distance betwn each ports be 1 mile because all of them are same ..By the question we find that the speed of the ship frm the port is equal 2 distance from the port 2 the port...
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A ship leaves on a long voyage. When it is 18 miles from the shore, a seaplane, whose speed is 10 times that of the ship is sent to deliver mail. How far from the shore does the seaplane catch upo with the ship?
microelectronics
- Jan 3rd, 2010
Consider the speed of ship be a then the speed of plane is 10a; Let t be the time taken by the ship to travel 18 miles then a= 18/t;Speed of plane =180/t;Distance covered b...
uday reddy
- Jul 30th, 2006
Time taken is same for both the ships & seaplanetime =distance/speed.....if speed of ship=s then seaplane speed=10slet distance of ship be x then seaplane distance =18+xtherefore (x / s = (18 + x ) / 10s)...then we get x = 2 therfore total distance = 18+2=20ans 20
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In which of the system decimal number 184 is = to 1234?
arunava_nag
- Dec 31st, 2009
Base=54+3a+2a^2+a^3 = 180ie (a+1)^3 - a^2=181By virtue we can see 216 - 25 = 181Thus x=5
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Address of array
In a two-dimensional array, X (9, 7), with each element occupying 4 bytes of memory, with the address of the first element X (1, 1) is 3000, find the address of X (8, 5).
anon1987
- Dec 7th, 2009
In a two-dimensional array, X (9, 7), with each element occupying 4 bytes of memory, with the address of the first element X (1, 1) is 3000, find the address of X (8, 5). Ans: ...
SpandanaMohan
- May 21st, 2008
Since the address starts at 3000 and allocating 4 bytes to each location, i guess the address of X(8,5) will be 3212...correct??
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Discount Problem
A shopkeeper allows discount of 10% on the marked price of an item but charges a sales tax of 8% on the discounted price.If the customer pays Rs.680.40 as the price including the sales tax , what is the marked price?(a)Rs.630 (b)Rs 700 (c)780 (d) none
rajani_vaddepalli15
- Jul 1st, 2008
Ans:700let the market prise be M.10% discount of M=M/10selling prise excluding tax=M-discount=>M-M/10=9M/108% tax on discounted prise=9M/10*8/100=>actual selling prise including tax= 9M/10 + 72M/1000which is equal to Rs.680.40=>9M/10 + 72M/1000 = 680.40=>M=700
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A face of the clock is divided into three parts. First part hours total is equal to the sum of the second and third part. What is the total of hours in the bigger part?
manojthesingham
- Dec 5th, 2009
Sum of 1+2+3+4+5+6+7+8+9+10+11+12 = (12*13)/2 = 78X + Y + Z = 78Y + Z = X2X = 78X = 39[10,11,12,1,2,3]
kuruppushyam
- Aug 20th, 2009
A+b+c=78
a=b+c
then subsitute a in place of b+c we get 2a=78, the answer is 39 -
Glass
100 glasses are there.A servant has to supply glasses to a person.If he supplies the glasses without any damage he will get 3 paise.Otherwise he will loose 3 paise.At the end of supplying 100 glasses if he gets 270 paise.How many glasses were supplied safely?ANS: 95 i want the steps to solve this!
thirumalaiprabu
- Dec 3rd, 2009
Totally 270 paise he is having finally. 270/3=90so minimum 90 glasses of good quality he would have supplied. Remaining 10 are there. Only 270 paise he is having. We need to equalize the remaining 10 ...
SpandanaMohan
- May 29th, 2008
Let the number of glasses tat are supplied without any damage be 'x' and the number of glasses supplied with damage be 'y'....He gets 3ps for every glass tat he supplies without any da...
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Selling a car gains 25% on SP. What %gain on CP?
A) 15b) 25c) 33.33d) 47.5
Nagaiahgari Balaji
- Nov 3rd, 2009
Answer: 33.33%
If suppose sp is 100% (assume)
Then gain % is 25%..
Then subtract it from sp we will get cp i.e 100-25=75%.
We know two basic formulas %gain=(gain/cp)*100 . or %loss=(loss/cp)*100.
So %gain=(25/75)*100=33.33
-Balue
amrittandon88
- Sep 3rd, 2009
Let SP be 100so 25 is the profit nowso 75 is the CPso (25/75)*100=33.33% is the gain on CP
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Please explain steps1)A, B and C are 8 bit no's. They are as follows:A -> 1 1 0 0 0 1 0 1B -> 0 0 1 1 0 0 1 1C -> 0 0 1 1 1 0 1 0 ( - =minus, u=union)Find ((A - C) u B) =?2)My flight takes of at 2pm from a place at 18N 40E and landed 10 Hrs later at a place with coordinates 36N40W.What is the local time when my plane landed?
karthi08
- Oct 30th, 2009
11000101 00111010------------------10001011subtract c from a using binary subtractionwe wil get the ans 10001011then unoin means we hav to perform OR operation10001011 (A-C)00110011-------------10111011The ans is 10111011
sceechvocc
- Mar 16th, 2007
First of all 'u' indicates "OR "operation. and secondly "subtraction " => addition of two's complement.taking into account these two steps.C=001110101's compleme...
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A sum of money is divided among A, B and C such that for each rupee A gets, B gets 65paise and C gets 35paise. If C's share is Rs.560, the sum is … ?
Akshujain
- Oct 26th, 2009
Let x = rupees divided among b and cGiven x * 35/100=560x*65/100=560*65/35=> x = 10401040+ 560 = 1600and from the question we can say that a gets double of share which b and c together gets=> a's share is 3200
pawansharma1987
- Mar 14th, 2009
C's share = 560?which is 35/200 of total sum.Total sum be x (35/200) * x =560x=3200 Rs.
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If three tapes are filling a tank of capacity of 500lit with speed of 30lit/sec, 48lit/sec and 36lit/sec. Find after how long time tank will fill?
500/114
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Main(){File *fp;fp=fopen("xyz","r");}What does fp point to?
jayakumar
- Aug 12th, 2006
The fp contains a pointer to a FILE structure that holds the details of file xyz....
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There are three different boxes A, B and C. Difference between weights of A and B is 3 kgs. And between B and C is 5 kgs. Then what is the maximum sum of the differences of all possible combinations when two boxes are taken each time.
kuruppushyam
- Aug 20th, 2009
A-B=3B-C=5A-C=8 maximum sum of the differences of all possible combinations when two boxes are taken each time IS 13ANSWER IS 13
Narayanan87
- Sep 4th, 2008
Case i : A=x kgs B=(x+3) kgs C=(x+8)kgs then S.O.D = 16kgscase ii : A=x+3 B=x C=x+5 , S.O.D=10kgscase iii : A=x+8 B=x+5 C=x ,S.O.D=16kgsaltogether 42kgs
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In a basket 3 mangoes, 4 apples, and 4 bananas are there. Find number of ways we select randomly 3 fruits from the basket?
ROHAN
- Mar 6th, 2006
10c3=10!/3!*3!100800
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Fisherman's Day
A fisherman's day is rated as good if he catches 9 fishes, fair if 7 fishes and bad if 5 fishes. He catches 53 fishes in a week n had all good, fair n bad days in the week. So how many good, fair n bad days did the fisher man had in the week?
hydsarema
- May 24th, 2009
Let good days be xlet fair days be ylet bad days be zsince there are 7 days in a weekx+y+z is 79x+7y+3z=53since it is a 3 variable equation and we have only 2 equations we have to assume values for one of them.so let x be 1,2,3,4.putting x as 4 we get y as 1 and z as 2
pawansharma1987
- Mar 13th, 2009
If you want the answer quickly it can be done by generate and test method? x +y+z =7? 9x+7y+5z= 53hence x= 3 y =3 z=1 ans.
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Pole
A pole seen from a certain distance at an angle of 15deg and 100m ahead by 30deg.what is the height of pole?
hydsarema
- May 24th, 2009
Let the height of the pole be hlet the distance at which the angle of elevation is 30 be x.then we havetan 15 is h/100+xtan 30 is h/xby solving we get x as 866and the height as 499.7 which is approx 500m
pawansharma1987
- Mar 13th, 2009
The height of the pole is 50 mappllying trigo, we get,.tan 15 = h/(100+y) ;tan 30 = h/y;solving above, we geth=50m
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One angle of the triangle is 3 times a second angle and third angle is 20degrees more than the second angle. Then the second angle is?
bipurag
- Apr 19th, 2009
First step:let the second angle be:xTherefore the first angle:3xand third angle becomes:x+20Therefore ATQX+3X+X+20=180(As the three side of the angle total is 180)5x=160x=32so,The second angle is 32
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How to do the preparation for an aptitude
Which books i should prefer for the aptitude test of any company
pawansharma1987
- Mar 12th, 2009
Quantitative, Aptitude and Verbal & Non-Verbal Reasoning are best books always!
ersumit
- Jun 5th, 2008
You should follow Book named "Quantative aptitude" for practice in Mathematics & "verbal-non verbal reasoning" author R.S aggarwal.
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If the product of the 3 consecutive integers is 210, then the sum of the two smaller integers?
madhurimasridhar
- Mar 5th, 2009
Product is 210... so one of the integers must be 5 or 10.They are 5 6 7 or 3 4 5 or 10 9 8 or 10 11 12
Possible ans is 5 6 7 bcoz no other option gives the product which is mentioned
in the data.Sum of two smaller integers is 5+6=11.so ans is 11chandradeepika
- May 27th, 2008
the three consecutive integers be x,y and z.given: xyz=210. the unit place ends with 0. so it must be a multiple of 5,10,...if it is a multiple of 10 means it must lead to a large number because 10*9*...
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