Practice Quantitative Ability questions with answers and explanations.
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The sum is 76 and there are 4 values, so the average is 19.
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99 + 6 = 105.
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The sum is 75 and there are 5 values, so the average is 15.
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48 + 10 = 58.
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The sum is 105 and there are 5 values, so the average is 21.
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5% of 180 = 5/100 × 180 = 9.
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54 + 5 = 59.
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72 + 11 = 83.
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69 + 10 = 79.
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Divide both sides by 5: x = 90/5 = 18.
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15% of 250 = 15/100 × 250 = 37.
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The sum is 75 and there are 5 values, so the average is 15.
