1.

6 pumps of kirlosker can fill a tank in 7 days and 2 similar pumps of USHA can fill the same tank in 18 days. What is the ratio of the efficiency of a Kirlosker pump and a USHA pump?

Answer»

0.25486111111111
0.29583333333333
0.32916666666667
can't be determined

Answer :A


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