Pipes and Cisterns Practice Test 2 with solutions

Question : 30 of 40

Marks: +1, -0

If a pipe can fill

7/9

th part of a cistern in 13 minutes find the time taken by the same pipe to fill empty cistern working at the same rate?

Solution:

Time taken to fill

7/9

th part of cistern = 13 minutes
=

13 × 9/7

{117}/7

minutes
=

16 5/7

minutes

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