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Railways PYQCBT 1 2016

RRB NTPC · Question 21

Mayank, Deepak and Pawan, each of them working alone can complete a work in 5, 10 and 15 days respectively. If all three of them work together to complete a work and earn a total of Rs. 11,000, What will be Deepak’s share of the earnings?

  1. Rs. 2000

  2. Rs. 6000

  3. Rs. 4000

  4. Rs. 3000

Show answer & explanation

Answer: (D) Rs. 3000

Explanation

Earnings are shared in proportion to work done per day. Daily rates: Mayank 1/5, Deepak 1/10, Pawan 1/15, i.e. 6 : 3 : 2 (multiplying by 30). Deepak's share = 3/11 × 11,000 = Rs 3,000.