The Following Section consists of Math Quiz on Problems on Chain Rule.
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Chain Rule MCQ
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1. Question
1 points3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
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Let the required number of working hours per day be x.
More pumps, Less working hours per day (Indirect Proportion)
Less days, More working hours per day (Indirect Proportion)
Pumps 4 : 3 :: 8 : x Days 1 : 2 4 x 1 x x = 3 x 2 x 8
x = (3 x 2 x 8) (4) x = 12.