Chain Rule - Quantitative Aptitude (MCQ) questions for Q. 29371

Q.  Rohan wants to build a tank in 20 days for which he hires 60 workers. After 10 days, he sees that only 30% work has been done. To speed up the process and get the tank built in stipulated time, how many workers should work on the tank?
- Published on 11 Apr 17

a. 80
b. 120
c. 200
d. 140

ANSWER: 140
 
chain rule

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