a pool can be filled be one pipe in 9 hours and by a second pipe in 5 hours. how long will it take using both pipes to fill the pool?

Add the same hours both pipes take to fill the pool

1/9+1/5=14/45

Get the reciprocal of the fraction

45/14=3 3/14

thus it take 3 3/14 hours for the pipes to fill the pool together.

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up