TS ICET 26 May 2023 Shift 1 Solved Paper

Question : 97 of 200

Marks: +1, -0

A

cistern has 3 pipes

A, B

and

C

. The pipes

A

and

B

can fill it independently in 4 and 5 hours respectively, while

C

can empty a full tank in 2 hours. If the 3 pipes

{\A}, {\B}

and

{\C}

are opened at

5 {\am}, 6 {\am}

and

7 {\am}

respectively, the time at which the cistern will be empty is

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