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Quantitative Aptitude

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Work and Time

Question
7 out of 25
 

P can do a work in 18 days, Q in 9 days and R in 6 days P and Q start working together and after 2 days S join them .what is the total number of days taken to finish the work



A 2
B 3
C 4
D 5
E None of these

Ans. C P 18 days 1 unit

Q 9 days 2 unit

R 4 days 3 unit

Let total work is 18 units

P & Q do in 2 day = (1+2) x 2 = 6 unit

Rest work = 18 – 6 = 12 unit

P.Q,R together do unit daily so they work in day

Total day = 2 + 2 =4

Work and Time Flashcard List

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