Question

Ravi completed the school project in 30 days. How many days will Raushan take to complete the same work if he is 25% more efficient than Ravi?
1. 18
2. 20
3. 22
4. 24

Answer 1

Correct Answer - Option 4 : 24

Given:

Time taken by Ravi to complete the work = 30 days

Raushan is 25% more efficient than Ravi

Calculation:

Let the days taken by Raushan to complete the work be x

The ratio of time taken by Raushan and Ravi = 125 ∶ 100 = 5 ∶ 4

⇒ 5 ∶ 4 = 30 ∶ x

⇒ x = (4 × 30)/5 = 24

∴ Raushan will completed the same work in 24 days