SSC CPO 2019 PYQ — Question 133

SSC CPO Tier I - 12th December 2019 - Shift 2 • Quantitative Aptitude • Q133

A tank is filled in 4 hours by three pipes A, B and C. The pipe C is twice as fast as B and pipe B is thrice as fast as A. How much time will pipe A alone take to fill the tank?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. 40 hours

Understanding Application
Tricks
A B C
1 1 2
1 3 3
1 3 6

Total capacity = 1 + 3 + 6

10 unit

So

the total capacity of tank = 10 × 4 = 40

Now

A can fill alone in

40/1 = 40 hours