Multiple Choice Questions. Click on the correct answer.
Problem 14
14. A water tank can be filled by one pipe in 10 hours and it can be
emptied by another in 15 hours. If both pipes are open, how long will
it take to fill 
the tank?
- (a)
- 30 hours.
- (b)
- 15 hours.
- (c)
- 60 hours.
- (d)
- 45 hours.
- (e)
- none of these.
Main Menu
Sun Aug 17 22:41:52 MDT 1997
Copyright © 1999-2024 MathMedics, LLC. All rights reserved.
Contact us
Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA
users online during the last hour