A is three times more efficient worker than B and is therefire able to complete a work in 60 days less than B. What is the number of days that A and B together will take to complete the work ?
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A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in: The time difference is (3 - 1) 2 days while B take 3 days and A takes 1 day.
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Let B takes x days to finish the whole work and A takes x-60 days to complete same work. It is given that A is thrice good workman as compare to B. Hence in 22.5 days are required to finish the work if A and B work together.
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