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Question
P, Q and R can do a work in 12, 24 and 32 days respectively. They all begin together. P continues to work till it is finished. R left after 4 days and Q one and half day before its completion. In what time is the work finished?
P, Q and R can do a work in 12, 24 and 32 days respectively. They all begin together. P continues to work till it is finished. R left after 4 days and Q one and half day before its completion. In what time is the work finished?
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Solution
The correct options are
B 7.5 days
C 152 days
Assume the work is done in ‘x’ days.
Work done by P + work done by Q + work done by R = 1
∴x12+x−1.524+432=1
⇒ x=7.5
B
7.5 days
C
152 days
Assume the work is done in ‘x’ days.
Work done by P + work done by Q + work done by R = 1
∴x12+x−1.524+432=1
⇒ x=7.5
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