SSC CHSL Time and Work question with solution
Time and WorkModerateSSC CHSL 2024
Riya can complete a piece of work in 30 days and Neha can complete the same work in 60 days. In how many days will they finish it working together?
- (A)20 days
- (B)30 days
- (C)19 days
- (D)22 days
Correct answer: (A) 20 days
Riya's one-day work = 1/30 and Neha's one-day work = 1/60. Together they do 1/30 + 1/60 = 90/1800 = 1/20 of the work per day, so the work is finished in 20 days.
Shortcut: Days together = (a × b)/(a + b) = 1800/90 = 20.
About this question
- Subject
- Quantitative Aptitude
- Topic
- Time and Work
- Exam
- SSC CHSL 2024
- Attempts on SSC Rank
- Not attempted yet
Appears in: SSC CHSL 2024 Tier 1 Question Paper — 1 July, Shift 1
More SSC CHSL Time and Work questions
- Vikram can complete a piece of work in 20 days and Divya can complete the same work in 30 days. In how many days will they finish it workin…
- Karan can complete a piece of work in 10 days and Rahul can complete the same work in 40 days. In how many days will they finish it working…
- Pooja can complete a piece of work in 9 days and Rahul can complete the same work in 18 days. In how many days will they finish it working…
- Riya can complete a piece of work in 12 days and Divya can complete the same work in 24 days. In how many days will they finish it working…
- Anita can complete a piece of work in 10 days and Pooja can complete the same work in 40 days. In how many days will they finish it working…
- Sneha can complete a piece of work in 10 days and Riya can complete the same work in 15 days. In how many days will they finish it working…
Last reviewed on 5 Oct 2026. Spotted a mistake? See our correction policy.