Practice Quantitative Ability questions with answers and explanations.
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The sum is 207 and there are 9 values, so the average is 23.
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63 + 8 = 71.
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The sum is 217 and there are 7 values, so the average is 31.
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Simple interest = P×R×T/100 = 6000×4×4/100 = 960.
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84 + 8 = 92.
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The sum is 168 and there are 8 values, so the average is 21.
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57 + 6 = 63.
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The sum is 100 and there are 4 values, so the average is 25.
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Divide both sides by 5: x = 50/5 = 10.
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Divide both sides by 5: x = 70/5 = 14.
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18 + 7 = 25.
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20% of 210 = 20/100 × 210 = 42.
