Q. 10 persons can do a job in X days. If 20 persons with twice the efficiency can do the same job in 5 days, then find the value of X?
A) 15
B) 40
C) 30
D) 20
✔ Correct Answer: 20
Exam Insight
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A) 15
B) 40
C) 30
D) 20
✔ Correct Answer: 20
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