Working 5 hours a day, A can Complete a work in 8 days and working 6 hours a day, B can complete the same work in 10 days. Working 8 hours a day, they can jointly complete the work in how many days?
A. 3 days B. 4 days C. days D. days
Correct Answer: A
Explanation
Working 5 hours a day, A can complete the work in 8 days hours Working 6 hours a day, B can complete the work in 10 days hours 's 1 hour's work Hence, A and B can complete the work in 24 hours which is equal to 3 days.
