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? Choose the correct choice from the following answers.
A) 22 1/2	B) 22 1/3	C) 23	D) 23 1/2	E) 23 1/3
Ratio of times taken by A and B = 1 : 3.   The time difference is (3 - 1) 2 days while B take 3 days and A takes 1 day.   If difference of time is 2 days, B takes 3 days.   If difference of time is 60 days, B takes 3	x 60 = 90 days.   2   So, A takes 30 days to do the work.   A's 1 day's work =	1   30   B's 1 day's work =	1   90   (A + B)'s 1 day's work = 1	+	1 =	4	=	2   30	90	90	45   A and B together can do the work in	45	= 22	1	days.   2	2   22 1/2nswer is 22 1/2
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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?