Anil is 12.5 percent more efficient than Sachin. If Sachin alone can finish a work in 10 days, then in how many days will Anil alone finish the same work?
Answer & explanation
Correct answer: option 3
Since, Anil is 12.5% more efficient than Sachin,
Anil : Sachin
Efficiency 9 : 8
Time taken to do a work ∝ $\frac{1}{efficiency}$
Time taken 8 : 9
Time taken by Sachin = 10 days,
Then time taken by Anil = $\frac{10}{9}$ x 8 = $\frac{80}{9}$ days