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P,Q and R can do a work in 10,15 and 30 ...

P,Q and R can do a work in 10,15 and 30 days respectively .P works daily .Q and R together join P on altermate days starting the first day . In how many days will the work be done ?

A

`6(1)/(3)`

B

`6(3)/(4)`

C

`6(1)/(2)`

D

6

Text Solution

Verified by Experts

The correct Answer is:
C
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