Practice Quantitative Ability questions with answers and explanations.
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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 2: x = 22/2 = 11.
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The sum is 76 and there are 4 values, so the average is 19.
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The sum is 135 and there are 5 values, so the average is 27.
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75 + 5 = 80.
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Simple interest = P×R×T/100 = 6400×6×3/100 = 1152.
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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 = 5600×8×2/100 = 896.
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Divide both sides by 4: x = 20/4 = 5.
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Divide both sides by 3: x = 48/3 = 16.
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102 + 7 = 109.
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The sum is 207 and there are 9 values, so the average is 23.
