Question

A hot water tap filled a bath in 7 1/2 minutes,while a cold water tap fills it in 5 minutes,how long will it take to fill the bath when both taps are turned on together?​

Answer 1

3 minutes

Explanation:

Let's say that the bathtub is 15L

It would take 7.5 mins to fill 15L

15L/7.5 = 2L per minute

The other tap would take 5 minutes to fill 15L

15L/5 = 3L per minute

3L per minute + 2L per minute = 5L per minute

15L/5L per min = 3 minutes

Sorry for the delay. Accidentally pressed the answer button without the answer. Hope I helped.