Time and Work with Explanation

Q1. Carpenter A builds furniture in 15 days, and Carpenter B does the same task in 10 days. In how many days, will they complete the job if working together?

A. 9 days B. 6 days
C. 8 days D. 5 days

Q2. Mohan, Rohan, and Sohan can complete a task in 12, 6, and 24 days respectively. If they work together, in how many days will they complete the work?



C. 4 days D.


Q3. Painter A can paint a house in 16 days, and painter B can do the same work in 20 days. With the help of painter C, they paint the house in 8 days only. Then, Painter C alone can do this task in

A. 80 days B. 85 days
C. 79 days D. 76 days

Q4. 10 girls can complete a piece of work in 8 days and 8 boys take 20 days to complete the same task. How many days will 5 girls and 10 boys take to finish this job?

A. 8 days B. 9 days
C. 7 days D. 10 days

Q5. A tank has two leakages. The first leakage alone can empty the tank in 9 minutes and the second alone would have done it in 6 minutes. If water leaks out at a costant rate, how long does it take both the leakage together to empty the tank?

A. 3.1 min B. 3.6 min
C. 3.5 min D. 4 min

Q6. Ankit and Arya together can finish a task in 4 days. If Ankit alone, can do the same task in 12 days. In how many days, Arya alone can complete this work?

A. 4 days B. 5 days
C. 7 days D. 6 days

Q7. Two men and three women can repair a bridge in 10 days while three men and two women can do same work in 8 days. If two men and one woman are used to finish this work, in how many days they will complete it?

A. 15 days B. 12.5 days
C. 13.5 days D. 11 days