A is thrice as good a workman as B and therefore is able to finish a job in 40 days less than B. working together, they can do it in
Choose the correct choice from the following answers:
A) days B) ½ days C) days D) days E) days
Explanation:   B = 3A   3A – A =40 days   A = 20days   Then, B = 90 days   (A + B) = 20 × 90/ 120 = 20 days .   daysnswer: Option days
<result>A</result>
A is thrice as good a workman as B and therefore is able to finish a job in 40 days less than B. working together, they can do it in