Question

three pipes A ,B and C can fill a tank in 10 minutes, 15 mins, and 30 mins respectively. what is the time taken by three pipes to fill the tank if they are opened together?​

Answer 1

Answer:

5 minutes

Step-by-step explanation:

A, B, C can do 1/10, 1/15, 1/30 th work in 1 minutes

$\frac{1}{10} + \frac{1}{15} + \frac{1 }{30} = \frac{6}{30} = \frac{1}{5}$

If all opened together, they can complete 1/5 th work in one hour.

They can fill a tank in 5 minutes