Question

A cistern of capacity 40 litres has an inlet and an outlet pipe. When both the pipes are opened at once, it takes 8 minutes to fill the cistern. However, if the outflow rate is increased 1.5 times, the cistern never gets filled. Which of the following can be the outflow rate?

CAT 2021

A
8 litres/minute
CORRECT ANSWER WRONG ANSWER
B
6 litres/minute
CORRECT ANSWER WRONG ANSWER
C
12 litres/minute
CORRECT ANSWER WRONG ANSWER
D
9 litres/minute
CORRECT ANSWER WRONG ANSWER
Solution

Correct option is

(C)