3/20 is what percent of 12/25?
Correct answer: B. 31.25%
- A. 42.75%
- B. 31.25%
- C. 35.5%
- D. 40.5%
- E. None of these
Explanation
To find what percentage 3/20 is of 12/25, calculate [(3/20) ÷ (12/25)] x 100 = (3/20 x 25/12) x 100 = 31.25%. The likely trap is 40.5%, which results from an error while dividing the two fractions.
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Percentages express a quantity as parts per hundred and support calculations involving increases, decreases, discounts, commissions, taxes, and successive changes. Questions require distinguishing percentage change from percentage points and identifying the original value when a final value and its percentage change are given.
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