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A machine P can print one lakh books in ...

A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. Al the machine are started at 9 a.m. while machine P is closed at 11 a.m. and the remaining two machines complete the work. Approximately at what time will the work be finished? `11 : 30\ adotmdot` b. `\ 12\ noon` c. `12 : 30\ pdotmdot` d. `1\ pdotmdot`

A

11:30 a.m

B

12 noon

C

12 : 30 p.m.

D

1 p.m.

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D
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