One filling pipe P is three times faster than another filling pipe Q, if P can fill tank in 24 hours, then what is the time taken to completely fill the tank if both the pipes are opened together?

1. One filling pipe P is three times faster than another filling pipe Q, if P can fill tank in 24 hours, then what is the time taken to completely fill the tank if both the pipes are opened together?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 12 hours

2. 16 hours

3. 18 hours

4. 14 hours

Answer

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