A, B, and C can finish a task in 24, 6, and 12 days, respectively. They will do the same job in the following areas while working together:
A. 1/24 day
B. 7/24 day
C. 3 3/7days
D. 4days
Answer:C
A, B, and C can finish a task in 24, 6, and 12 days, respectively. They will do the same job in the following areas while working together:
A. 1/24 day B. 7/24 day C. 3 3/7days D. 4days
Explanation: If A can complete a task in n days, then A's 1 day's labour equals 1/n1 day's labour for (A + B + C) = 1/24 + 1/6 + 1/12 = 7/24.If A's 1 day's labour Equals 1/n, then A can complete the task in n days.As a result, the project will be completed in 3 3/7 days if all three of them work together.