Subject
Quantitative Aptitude
Topic
Pipes & Cistern
A can do a work in 15 days and B in 20 days. If they on it together for 4 days, then the fraction of the work that is left is:
A can do a work in 15 days and B in 20 days. If they on it together for 4 days, then the fraction of the work that is left is:
ক)
1/4খ)
1/8গ)
1/15ঘ)
8/15Explanation
Solution: (A+B)'s 1 day's work = 1/15 + 1/20 = (4+3)/60 = 7/60 part. So, (A+B)'s 4 day's work = 7/60 4 or 7/15 part. So, Work left 1- 7/15 = 8/15 part.Related questions
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