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Question 35Asked in BPSC TRE 2.0 (2023) Computer Science Class 11-12 + 11 more papers

Mohan can do a bit of work in 25 days which can be completed by Sohan in 20 days. Both together labour for 5 days and afterward Mohan leaves off. How long…

Mohan can do a bit of work in 25 days which can be completed by Sohan in 20 days. Both together labour for 5 days and afterward Mohan leaves off. How long will Sohan take to complete the remaining work?
  1. A20 days
  2. B11 days
  3. C14 days
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (B) 11 days

Explanation

Together per day: 1/25 + 1/20 = 9/100; in 5 days 45/100 is done. The remaining 55/100 at Sohan's rate 1/20 per day takes 55/100 × 20 = 11 days.

From BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper

This is question 35 of BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.

Asked in 12 papers