Amar is 10 percent more efficient than Sachin. If Sachin alone can finish a work in 44 days, then in how many days will Amar alone finish the same work?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 40 days.
Amar is 10% more efficient than Sachin.
This means Amar can complete 110% of the work Sachin does in the same time.
Sachin's efficiency = 1/44 of the work per day
Amar's efficiency = 1.1 × 1/44 = 1.1/44 of the work
So,
Time taken by Amar = 1/Amar's efficiency
⇒ 1/1.1/44
⇒ 44/1.1 = 40 days