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Raj can do a piece of work in 20 days. He started the work and left after some days, when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do the complete work, working together?
10
12
6
8
Answer with explanation
Answer: Option DExplanation
Workspace
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
3 days
4.5 days
4 days
Answer with explanation
Answer: Option AExplanation
Workspace
A and B together can complete a work in 3 days. They start together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in
10 days
9 days
6 days
5 days
Answer with explanation
Answer: Option CExplanation
Workspace