AP ICET 17 Sep 2021 Shift 1 Paper

Question : 169 of 200

Marks: +1, -0

Two pipes '

{P}

' and '

{Q}

' can respectively fill a cistern in 48 minutes and 60 minutes respectively. Both the pipes are opened for 20 minutes and then the pipe '

Q

' is turned off. Then the time ,(in minutes) it takes further to fill the cistern is

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