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. Answers:
A) 20 Days  B) 22 Days  C) 21.5 Days  D) 22.5 Days  E) 23.5 Days
If A completes a work in 1 day, B completes the same work in 3 days   Hence, if the difference is 2 days, B can complete the work in 3 days   =&gt; if the difference is 60 days, B can complete the work in 90 days   =&gt; Amount of work B 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 B can together do in 1 day = 1/90 + 1/30 = 4/90 = 2/45   =&gt; A and B together can do the work in 45/2 days = 22 ½ days   Answer is 22.5 Days.
<result>D</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.