Q: If 50% of the difference between x and y is equal to 30% of the sum of x and y, what percentage of x is y?

A 24%
B 25%
C 34%
D 45%

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Answer: B

Explanation:

The solution would be calculated as follows:

50% of (x-y) = 30% of (x+y)
(50/100)(x-y) = (30/100)(x+y)
5(x-y) = 3(x+y)
2x = 8y
x = 4y

Therefore, the required percentage is ((y/x) * 100)% = ((y/4y) * 100) = 25%.

This means that y is equal to 25% of x

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Q: If 50% of the difference between x and y is equal to 30% of the sum of x and y, what percentage of x is y?

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