Two quantities are given as Quantity I and Quantity
II. You have to determine the relationship between them and give the answer. The efficiencies of a man and a boy are in the ratio 7 : 4. For a building project, 2 men and 3 boys together can finish the job in 12 days. Quantity I: In how many days will 3 men and 2 boys complete the entire job? Quantity II: If the man’s efficiency increases by 20% and the boy’s by 10%, how many days will one man and one boy take to finish 75% of the same job?