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Thursday, January 30, 2020

A water tank has three taps A, B and C.Tap A, when opened, can fill the water tank alone in 4 hours. Tap B, when opened, can fill the water tank alone in 6 hours and tap C, when opened, can empty the water tank alone in 3 hours. If taps A, B and C are opened simultaneously how long will it take to fill the tank completely ?

A water tank has three taps A, B and C.Tap A, when opened, can fill the water tank alone in 4 hours. Tap B, when opened, can fill the water tank alone in 6 hours and tap C, when opened, can empty the water tank alone in 3 hours. If taps A, B and C are opened simultaneously how long will it take to fill the tank completely ?
A10 hours
B17 hours
C18 hours
D12 hours

Anwer is : 12 hours

Explanation:

Part of the tank filled in 1 hour when all the taps are opened

14+1613

= 3+2412

=112

Hence, the tank will be filled in 12 hours.

Akilesh Kharvi
answered May 29 '2017 at 18:52

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