Correct option is A
Given:
25 people, working 15 hours a day, can complete 5 units of work in 8 day
Formula Used:
Work done = Number of workers Hours per day Time
Solution:
Total Work =
Work per unit =
= 600person-hours per unit
Work required for 10units
Total work for 10 units =Work per unit Number of units
= 600 10 = 6000 person-hours
Daily work capacity of 12 person = = 240hours per day
Number of days required =