Multiple Choice Questions. Click on the correct answer.
Problem 17
17. Pipe A can fill a pool in ten hours and pipe B can fill the same
pool in 15 hours. How long will it take to fill half the
pool if both pipes are used?
- (a)
- 6 hours.
- (b)
- 3 hours.
- (c)
- 15 hours.
- (d)
- 10 hours.
- (e)
- none of the these.
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