Practice Quantitative Ability questions with answers and explanations.
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The sum is 217 and there are 7 values, so the average is 31.
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90 + 10 = 100.
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20% of 260 = 20/100 × 260 = 52.
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The sum is 76 and there are 4 values, so the average is 19.
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20% of 210 = 20/100 × 210 = 42.
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Divide both sides by 5: x = 90/5 = 18.
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5% of 130 = 5/100 × 130 = 6.
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The sum is 216 and there are 8 values, so the average is 27.
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75 + 5 = 80.
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25% of 270 = 25/100 × 270 = 67.
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Simple interest = P×R×T/100 = 6800×10×2/100 = 1360.
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The sum is 168 and there are 8 values, so the average is 21.
