Multiple choice

A can do a piece of work in 20 days and B can do it in 25 days. Both of them finished the work and earned Rs. 3,600. Then A's share is

  1. Rs. 1,600

  2. Rs. 2,000

  3. Rs. 3,000

  4. Rs. 3,100
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Work done is inversely proportional to time. A's efficiency = 1/20, B's efficiency = 1/25. Ratio of efficiencies = 5:4. A's share = (5/9) * 3600 = 2000.

AI explanation

The earnings are distributed in the ratio of their efficiencies, which is the inverse of the time they take. The ratio of A's share to B's share is 1/20 : 1/25, which simplifies to 5 : 4. With the total earnings being Rs. 3,600, A's share is (5/9) * 3600. A's share is Rs. 2,000.

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