SSC CPO 2019 PYQ — Question 130

SSC CPO Tier I - 13th December 2019 - Shift 2 • Quantitative Aptitude • Q130

pipe A can fill a tank of capacity 350 liters in 7/2 minutes. Pipe B can fill a tank of capacity 780 liters in 26/3 minutes. How long (in min) will it take to fill a tank of capacity 1615 liters, if both pipes are opened together?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. 17/2

Understanding Application
Tricks

The capacity of pipe A = 350/(7/2)

= 100 liter/min

&

The capacity of pipe B = 780/(26/3)

= 90 liters/min

Hence

Together

1615/(100 + 90)

= 1615/190

= 17/2