AP ICET 25 July 2022 Shift 1 Solved Paper

Question : 171 of 200

Marks: +1, -0

\P, \Q

and

\R

can complete a piece of work independently in 15 hours, 12 hours and 10 hours respectively.

\P

and

\Q

started the work and after 4 hours

\R

joined them to complete the work. The time (in minutes)

{\R}

worked is

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