SSC CGL Time and Work question with solution
Time and WorkModerateSSC CGL 2024
Riya can complete a piece of work in 14 days and Rahul can complete the same work in 35 days. In how many days will they finish it working together?
- (A)21 days
- (B)12 days
- (C)24.5 days
- (D)10 days
Correct answer: (D) 10 days
Riya's one-day work = 1/14 and Rahul's one-day work = 1/35. Together they do 1/14 + 1/35 = 49/490 = 1/10 of the work per day, so the work is finished in 10 days.
Shortcut: Days together = (a × b)/(a + b) = 490/49 = 10.
About this question
- Subject
- Quantitative Aptitude
- Topic
- Time and Work
- Exam
- SSC CGL 2024
- Attempts on SSC Rank
- Not attempted yet
Appears in: SSC CGL 2024 Tier 1 Question Paper — 9 September, Shift 3
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