The Following Section consists of Math Quiz on Problems on Chain Rule.
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Chain Rule MCQ
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Question 1 of 1
1. Question1 points
3 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?Correct
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.