Quantitative Aptitude :: Time and Work Problems And Answers

37. In 12 pumps can raise 1218 tons of water in 11 days of 9 hrs each, how many pumps will raise 2030 tons of water in 12 days of 11 hrs each?
 

A. 12 B. 15
C. 18 D. 21
Answer & Explanation

Answer: Option B

Explanation:
pumps              work         time
12                     1218         99
 x                      2030         132
=> 1218/(912*99) = 2020/(x  × 132)
=> x = 15 pumps

 


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