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'A' can complete 40% of a work in 6 days, while 'B' can complete the work in 71/2 days. If they work together, then in how many days will the work be completed?
4
7
6
5
Correct option 4: 5 days
- Let's break down the given info:
- 'A' does 40% of work in 6 days ? So, to finish 100%, 'A' needs (6/0.4) = 15 days
- 'B' can complete the whole work in 7 1/2 = 7.5 days
- A's 1 day's work = 1/15
- B's 1 day's work = 1/7.5
- Combined 1 day's work = 1/15 + 2/15 = 3/15= 1/5
- So, together they finish in 5 days.
By: santosh ProfileResourcesReport error
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