A is thrice as good as B in work. A is able to finish a job in 60 days less than B. They can finish the work in - days if they work together.	Choices:	A) 18 days	B) 22 ½ days	C) 24 days	D) 26 days	E) 28 days
Explanation :   If A completes a work in 1 day, 22 ½ days completes the same work in 3 days   Hence, if the difference is 2 days, 22 ½ days can complete the work in 3 days   =&gt; if the difference is 60 days, 22 ½ days can complete the work in 90 days   =&gt; Amount of work 22 ½ days can do in 1 day= 1/90   Amount of work A can do in 1 day = 3 × (1/90) = 1/30   Amount of work A and 22 ½ days can together do in 1 day = 1/90 + 1/30 = 4/90 = 2/45   =&gt; A and 22 ½ days together can do the work in 45/2 days = 22 ½ days   ANSWER IS 22 ½ days
<result>B</result>
A is thrice as good as B in work. A is able to finish a job in 60 days less than B. They can finish the work in - days if they work together.