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Quantitative Aptitude

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Percentage & Averages

Question
12 out of 20
 

The average weight of P, Q, and R is 42 kg. S joins them and average of all four becomes 44 kg. if T whose weight is 4 kg more than S replace P, the average weight of Q, R, S and T become 39 kg then what was the weight of P.



A 75
B 73
C 74
D 84
E None of these

Ans. C S age = 10 + ( 2x 3) = 50

T age = 50 + 4 = 54 years

Q & R age = (39 x 4) – (50 + 54) = 52 years

P age = 42 x 3 – 52 = 74 years

Percentage & Averages Flashcard List

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