If 36 persons can finish 50% of work in 12 days In how many days 72 person can finish the complete work?
Answer & explanation
Correct answer: option 4
The correct answer is Option 4: 12
Step 1: Convert work into person-days
Work done = 36 persons × 12 days = 432 person-days
This completes 50% of the work.
So 100% work requires:
2 × 432 = 864 person-days
Step 2: Find days for 72 persons
Days = Total person-days / Number of persons
Days = 864 / 72
Days = 12