A is thrice as good a workman as B and therefore is able to finish a job in 30 days less than B. working together, they can do it in
Select:	A) days	B) ½ days	C) 1/4 days	D) days	E) days
Explanation:   B = 3A   3A – A =30 days   A = 15days   Then, B = 90 days   (A + B) = 15 × 90/ 120 =11 1/4 days .   Answer: Option 1/4 days
<result>C</result>
A is thrice as good a workman as B and therefore is able to finish a job in 30 days less than B. working together, they can do it in