Latest Others Aptitude Question SOLUTION: If 50% of (a - b) is= 30% of (a + b), then what percentage of x is y?

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(#M40008760) OTHERS question Keep an EYE

If 50% of (a - b) is= 30% of (a + b), then what percentage of x is y?

Solution

Ans. 25%, it seems x & y have been wrongly written in place of a & b respectively

Solution:
50% of (a - b) = 30% of (a + b)
=> .5a-.5b = .3a+.3b
=> .2a = .8b
=> a = 4b
which means a is 400% of b
so b is 25% of a
This answer is given by RAKESH KUMAR KOHLI and is correct answer

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Asked In Others Vignesh (12 years ago)

Solved Read Solution (4)

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Pargat Pal Singh  (12 years ago)

b is 25% of a.

Is this solution Helpfull? Yes (2) | No (1)  

Rakesh Kumar Kohli  (12 years ago)

Ans. 400%, it seems x & y have been wrongly written in place of a & b.

Solution:
50% of (a - b) is= 30% of (a + b)
=> .5a-.5b = .3a+.3b
=> .2a = .8b
=> a = 4b
which means a is 400% of b

Is this solution Helpfull? Yes (1) | No (2)  

B.Senthil Kumar  (12 years ago)

50/100(a-b)=30/100(a+b)
10a-10b=6a+6b
so 4a=16b
a/b=16/4
a=4 b=1 so a is 400 percent of b

Is this solution Helpfull? Yes (1) | No (2)  

Pargat Pal Singh  (12 years ago)

Dear Admin,

Pls check.

Mr. rakesh has given answer as 400% and you have accepted it right.

But you yourself gave answer as 25%.
Which one is correct ?

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