Question 83

Two numbers are 10% and 20% lesser than a third number respectively. By how much percent is the second number should be enhanced to make it equal to the first number?

Solution

Let those 3 numbers are x, y&z;

x = 0.9z & y = 0.8z

y = 0.8(x/0.9)

(0.9/0.8)y = x

1.125 y = x

so to make y equal to x, it should be enhanced by (1.125-1)*100% = 12.5%

So the answer is option C.

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