Multiple choice

Amit is twice as good a painter as Meenakshi and together they finish a piece of work in 6 days. In how many days will Meenakshi alone finish the work?

  1. 10

  2. 12

  3. 24

  4. 18

  5. 20
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let M's rate be m, A's rate be 2m. Combined rate = 3m = 1/6. m = 1/18. Meenakshi takes 18 days.

AI explanation

Since Amit is twice as good as Meenakshi, the ratio of their efficiencies is 2 to 1, meaning Amit completes two parts of the work while Meenakshi completes one part in the same timeframe. Working together, their combined efficiency is 3 units per day, so in 6 days they complete 18 units of work (3 multiplied by 6). Meenakshi finishes this total work of 18 units alone at a rate of 1 unit per day, requiring 18 days.

Keep practicing — related questions