Correct Answer: Option C
Let, the required number of days be x. Then,
More pumps, Less days (Indirect Proportion) Less working hrs / day, More days (Indirect Proportion) Pumps =196 : 49 Working Hrs / Day =5 : 8 :: 13/2 : x 96 x 5 x x = 49 x 8 x 13/2 x = 49 x 8 x 13/2 x 1 / (196 x 5) x = 13/5
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