12.5 + 10 1/4 of 100 ÷ 10% of 10 = ____________?
Correct answer: A. 1037.50
- A. 1037.50
- B. 1157.50
- C. 103.75
- D. 1038
Explanation
Interpret 10 1/4 as the mixed number 10.25: 10.25 x 100 = 1025, while 10% of 10 = 1. Therefore 12.5 + 1025 ÷ 1 = 1037.5, which is option a. Option c, 103.75, comes from treating 10 1/4 as 1.025 instead of 10.25.
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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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