Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of the solution R in the liquid in the tank after 3 minutes?
-
1]
5/11
-
2]
6/11
-
3]
7/11
-
4]
8/11
Solution
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| # | Quiz |
hours
