Chain Rule - Quantitative Aptitude (MCQ) questions for Q. 28502

Q.  12 pumps of one type pump 30 litres of water when each is running for 18 hours per day. But a set of 16 pumps of other type pump 40 litres of water when each is running for 24 hours per day. How efficient are former type of pumps than latter type?
- Published on 15 Mar 17

a. 4/3 times more efficient
b. 7/15 times more efficient
c. 3/4 times more efficient
d. 7/12 times more efficient

ANSWER: 4/3 times more efficient
 
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