A is thrice as good a workman as B and therefore is able to finish a job in 60 days less than B. working together, they can do it in
Options:
A) 20 days
B) 22 ½ days
C) 25 days
D) 30 days
E) 35 days
Explanation:   B = 3A   3A – A =60 days   A = 30days   Then, B = 90 days   (A + B) = 30 × 90/ 120 = 45/2 = 22 ½ days .   Answer: Option 22 ½ days
<result>B</result>
A is thrice as good a workman as B and therefore is able to finish a job in 60 days less than B. working together, they can do it in