Question

Tap ‘A’ and tap ‘B’ can fill a tank in 48 hours

Q: Answer-Tap ‘A’ and tap ‘B’ can fill a tank in 48 hours and 30 hours, respectively. If both taps are opened...

Let total capacity of the tank is 240 litres LCM of 48 and 30 Quantity of water filled by tap A in one hour 24048 5 litres Quantity of water filled by tap B in one hour 24030 8 litres Let tap A is closed after x hours So, 13 x 8 20 x 240 Or, 5x 80 Or, x 16 hours

and 30 hours, respectively. If both taps are opened together, then find the time after which tap ‘A’ must be closed so the whole tank can be filled in 20 hours.

A 16 hours

B 18 hours

C 14 hours

D 32 hours

E 12 hours

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