Chain Rule - Quantitative Aptitude (MCQ) questions for Q. 28540

Q.  75 girls complete one-third decoration of a building in 40 hours. Now they have only 50 hours to complete the rest of the decoration. How many more girls are necessary to help them complete the task?
- Published on 15 Mar 17

a. 45 girls
b. 150 girls
c. 100 girls
d. 55 girls

ANSWER: 45 girls
 
chain rule

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