Question

P, Q, R can do a piece of work in 40 days, 90 days, and

Q: Answer-P, Q, R can do a piece of work in 40 days, 90 days, and 36 days, respectively. P started the work. Q...

LCM 40, 90, 36 360 Let the total work be the LCM of the time taken individually by the workers. Efficiencies, P does each day 360 40 9 units Q does each day 360 90 4 units R does each day 360 36 10 units Let the total work be completed in K days. According to the question, 9 x K 4 x K-8 10 x K - 9 360 9K4K-3210K-90360 23K 482 K 48223 K-9 48223 -9 482-2072327523 K - 9 112223 days.

36 days, respectively. P started the work. Q joined him after 8 days. If R joined them after 9 days from the beginning, then for how many days did R work?

A 12(8/23)

B 11(8/23)

C 11(22/23)

D 13(8/23)

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P, Q, R can do a piece of work in 40 days, 90 days, and

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