Multiple choice

Mohit is five times as efficient as Rohit. If Mohit can complete a piece of work in 28 days less than Rohit, then in how many days can Rohit alone complete the same work?

  1. 35 days

  2. 32 days

  3. 45 days

  4. 40 days

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If Mohit is 5 times as efficient as Rohit, he takes 1/5 the time to complete the same work. Let Rohit take R days. Then R - R/5 = 28, giving 4R/5 = 28, so R = 35 days. Rohit alone completes the work in 35 days. Option A is correct.