SSC CGL Time and Work question with solution
Time and WorkModerate
Sneha can complete a piece of work in 20 days and Vikram can complete the same work in 80 days. In how many days will they finish it working together?
- (A)16 days
- (B)50 days
- (C)15 days
- (D)18 days
Correct answer: (A) 16 days
Sneha's one-day work = 1/20 and Vikram's one-day work = 1/80. Together they do 1/20 + 1/80 = 100/1600 = 1/16 of the work per day, so the work is finished in 16 days.
Shortcut: Days together = (a × b)/(a + b) = 1600/100 = 16.
About this question
- Subject
- Quantitative Aptitude
- Topic
- Time and Work
- Exam
- SSC CGL
- Attempts on SSC Rank
- Not attempted yet
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