Question 90

Two numbers are 50% and 80% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

Solution

Let third number = $$100x$$

First number is 50% less than $$100x$$ and second number is 80% less than $$100x$$

=> First number = $$50x$$ and Second number = $$20x$$

To make second number equal to first number, it should be enhanced by = $$50x - 20x = 30x$$

=> Required % = $$\frac{30x}{20x} \times 100 = \frac{300}{2} = 150 \%$$

=> Ans - (A)

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