Tick (✓) the correct answer

Question:

Tick (✓) the correct answer:

6 pipes fill a tank in 120 minutes, then 5 pipes will fill it in

(a) 100 min

(b) 144 min

(c) 140 min

(d) 108 min

Solution:

(b) 144 min

Let x min be the time taken by 5 pipes to fill the tank.

No. of pipes 6 5
Time (in min) 120 x">x

Now, $6 \times 120=5 \times x$

$\Rightarrow x=144$

Therefore, 5 pipes will take 144 min to fill the tank.

Leave a comment

Close

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now