Mathematics
Medium
Question
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 solution R in the liquid in the tank after 3 minutes?
A
5/11
B
6/11
✓ Official correct answer
C
7/11
D
8/11
Community credibility
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A
5/11
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B
6/11
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C
7/11
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D
8/11
No member explanations yet for this option.