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Pipes And Cisterns
Set 1
15
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➤ Pipes And Cisterns ➤ 1
Question 1
Q1.
Two pipes A and B can fill a cistern in 37
1
/
2
minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:
5 min.
9 min.
10 min.
15 min.
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