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  9. Q57

MPSC State Service 2021 · CSAT · Question 57 of 73

400 persons, working 9 hours a day complete 1/4 of the work in 10 days. How many additional persons, working 8 hours a day, required to complete the remaining work in 20 days?

Quantitative Aptitude

  1. A275Correct
  2. B250
  3. C675
  4. D400

Answer: A. 275

Explanation

Work = 400x9x10x4 units; remaining 3/4 needs 675 men at 8h/20d, so 275 additional: option (a).

Source: MPSC Rajyaseva Prelims 2021 – CSAT Paper II (Set D), official paper

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