Question

Pipe 'A' can fill a tank on its own in 14 minutes. When

Q: Answer-Pipe 'A' can fill a tank on its own in 14 minutes. When pipes 'A' and 'B' are both opened at the sam...

Let the total capacity of the tank L.C.M of 14 and 18 126 units So, efficiency of pipe A alone 126 14 9 unitsminute Combined efficiency of pipes A and B 126 18 7 unitsminute So, efficiency of pipe B alone 7 - 9 -2 unitsminute outlet So, time taken by pipe B alone to empty 50 of the cistern 126 X 0.5 2 31.5 minutes. Hence, option a.

pipes 'A' and 'B' are both opened at the same time, the tank is filled in 18 minutes. Determine how long it would take for pipe 'B' alone to drain half of the tank's capacity.

A 31.5 minutes

B 25 minutes

C 35 minutes

D 27.5 minutes

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Pipe 'A' can fill a tank on its own in 14 minutes. When

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