Mr. Rajesh is twice as good a worker as Mr. Vishal and together they finish a piece of work in 28 days. In how many days will Vishal alone finish the work?

Show answer & explanation

Answer: (C) 84

Explanation

If Vishal does 1 unit a day, Rajesh does 2, so together 3. The work = 3 × 28 = 84 units, and Vishal alone takes 84 days.