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Quantitative Aptitude

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Percentage & Averages

Question
10 out of 30
 

In three numers, the first is 2 times the second and the second is 3 times the third. If average of the three is 10, then the numbers are



A 18, 3, 9
B 9, 3, 18
C 3, 9, 18
D 18, 9, 3
E None of These

Ans. C Let third =x; Second = 3x; First = 6x

So 6x + 3x + x = 3x 10, 10x = 3x10

X = 3

So number = 3,9,18

Percentage & Averages Flashcard List

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