5) Pipe 1 alone fills a tank in 30 minutes. Pipe 2 alone empties the tank in 45 minutes. How long would it take before the tank overflows if both pipes and flowing?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Question 5

4) It takes one crew 8 hours to lay a foundation. There were two crews laying a foundation yesterday and it only
took three hours. How long would it take the additional crew to lay the foundation alone?
5) Pipe 1 alone fills a tank in 30 minutes. Pipe 2 alone empties the tank in 45 minutes. How long would it take
before the tank overflows if both pipes and flowing?
Transcribed Image Text:4) It takes one crew 8 hours to lay a foundation. There were two crews laying a foundation yesterday and it only took three hours. How long would it take the additional crew to lay the foundation alone? 5) Pipe 1 alone fills a tank in 30 minutes. Pipe 2 alone empties the tank in 45 minutes. How long would it take before the tank overflows if both pipes and flowing?
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