Question

Two pipes A and B can fill a tank in 18h and 12h respectively. If both the pipes are opened simultaneously, then how much time will be taken to fill the tank

• A. $6\frac{1}{5}$h
• B. $8\frac{1}{5}$h
• C. $7\frac{1}{4}$h
• D. $7\frac{1}{5}$h

Answer 1

Answer: (D)

$7\frac{1}{5}$h

Answer 2

The correct option is (D)