Latest CAT Aptitude Question SOLUTION: A tap can fill a tank in 6hrs. after half the tank is filled, three more similar taps are opened. what is the total time taken to fill the tank completely?

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A tap can fill a tank in 6hrs. after half the tank is filled, three more similar taps are opened. what is the total time taken to fill the tank completely?

Asked In CAT ramakrishna (10 years ago)

Solved virendra dubey Read Solution (1)

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Read Solution (1) :

virendra dubey  (10 years ago)

1 tap can fill the tank in 6 hrs..
now, so time required to fill half tank= 3hrs..
as given ,3 more similar taps are opened so total taps=3+1 =4
now,
time require to fill remaining=time require to fill half tank/total no of tap
==> 3/4hrs ==0.75 hrs =45min..
so total time =time to fill half tank+time require to fill remaining.
==> 3+0.753.75 or 3hrs 45min..
ans: 3 hour 45min..

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