Four men working together can dig a ditch in 42 days. They begin, but one man works only half-days. How long will it take to complete the job:...? Mcqs

Four men working together can dig a ditch in 42 days. They begin, but one man works only half-days. How long will it take to complete the job:...?

(A) 46 days

(B) 48 days

(C) 50 days

(D) 52 days