Question

Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes ?
A) 21 min
B) 24 min
C) 20 min
D) 22 min

Answer 1

Q:

Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes  ?

A) 21 min
B) 24 min
C) 20 min
D) 22 min

Answer:   A) 21 min 

Explanation:

Let the pipe B be closed after 'X' minutes.

30/16 - X/24 = 1 => X/24 = 30/16 - 1 = 14/16

=> X = 14/16 x 24 = 21 min.

Answer 2

Heyy mate ❤✌✌❤

Here's your Answer...

Let the pipe B be closed after 'K' minutes.

30/16 - K/24 = 1 => K/24 = 30/16 - 1 = 14/16

=> K = 14/16 x 24 = 21 min.
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