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Percentages - February 14, 2005

The GMAT Math sample question for the day is from the topic Percentages in Arithmetic.

Question
The wages earned by Robin is 30% more than that earned by Erica. The wages earned by Charles is 60% more than that earned by Erica. How much % is the wages earned by Charles more than that earned by Robin?

A. 23%
B. 18.75%
C. 30%
D. 50%
E. 100%

The correct choice is (A) and the correct answer is 100%.

Explanatory Answer
Let us assume that the wages earned by Erica is $ 100

Then, the wages earned by Robin and Charles will be $130 and $160 respectively.

Charles earns $30 more than Robin who earns $130.

Therefore, Charles wages is = 23.07%.
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