Percentage Practice Test 6 with solutions

Question : 23 of 40

Marks: +1, -0

If 50% of (x – y) = 30% of (x + y), then what percent of x is y?

Solution:

50/100(x-y)=30/100(x+y)

⇒2x=8y

∴x=4y

Required percentage

=y/x×100=y/{4y}×100=25%

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