A man, a woman and a boy can complete a job in 3,4 and 12 days respectively. How many boys must assist 1 man and 1 woman to complete the job in of a day?
A. 2
B. 5
C. 20
D. 41
Answer:D
A man, a woman and a boy can complete a job in 3,4 and 12 days respectively. How many boys must assist 1 man and 1 woman to complete the job in of a day?
A. 2 B. 5 C. 20 D. 41