By working 12 hours a day, 90 people can complete a work in 16 days. How much work will be left after 24 days if 70 people work for 8 hours per day?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. .
Total work = 90 × 12 × 16 = 17280
Work done = 70 × 8 × 24 = 13440
Work remaining = (17280 - 13440)/17280 = 3840/17280 = 2/9