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Question

Two numbers are less than a third number by 20% and 24% respectively. Find the percent by which the second number is less than the first.

A 16% Correct Answer Incorrect Answer
B 12.5% Correct Answer Incorrect Answer
C 10% Correct Answer Incorrect Answer
D 5% Correct Answer Incorrect Answer
E 8% Correct Answer Incorrect Answer

Solution

Let the third number be 100. Then, first number will be = 100 – 20 = 80 And the second number will be = 100 – 24 = 76 Required % = [(80 – 76)/80]×100 = 5%

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