Time and Work Practice Set - Assam Down Town University PDF

Assam down town University PRACTICE SET: Time and Work Q1. A can finish a work in 24 days. B in 9 days and Q6. Ram is twice as efficient as Sunita and can finish C in 12 days. B and C start the work but are forced a piece of work in 25 days less than...

Assam down town University PRACTICE SET: Time and Work Q1. A can finish a work in 24 days. B in 9 days and Q6. Ram is twice as efficient as Sunita and can finish C in 12 days. B and C start the work but are forced a piece of work in 25 days less than Sunita. Sunita to leave after 3 days. The remaining work was done can finish this work in how many days? by A in: A. 30 A. 5 days B. 90 B. 6 days C. 25 C. 10 days D. 50 D. 11 days Q7. Chetan is thrice as efficient as Mamta and Q2. A can do a work in 12 days. B is 60% more together they can finish a piece of work in 60 days. efficient than A. In how many days will B complete Mamta will take how many days to finish this work the work? alone? A. 7.5 A. 80 B. 7 B. 160 C. 14 C. 240 D. 10.5 D. 320 Q3. Suhan can do a work in 12 days and Simran can Q8. X can do a piece of work in 20 days. He worked do the same in 36 days. With Rahul they can do the at it for 5 days and then Y finished it in 15 days. In job in 8 days. So, Rahul can do the job in: how many days can X and Y together finish the A. 45 days work? B. 72 days A. 10 C. 68 days B. 20 D. 30 days C. 30 D. 40 Q4. P is thrice as good a workman as Q and, therefore, is able to finish a job in 60 days less than Q9. One man can paint a house in, '10' days and Q. Working together, they can do it in: another man can do it in 15 days. If they work A. 45 days together, they can do it in 'd' days, then the value of B. 22.5 days 'd' is: C. 30 days A. 6 D. 12.5 days B. 8 C. 12 D. 10 Q5. A and B can finish a work in T days. If A and B alone can do this work in (T + 3) and (T + 12) days Q10. A can do a piece of work in 9 days and B in 18 respectively, find the value of T. days. They begin together, but A goes away three A. 3 days before the work is finished. The work lasts for: B. 6 A. 6 C. 12 B. 8 D. 18 C. 12 D. 10 1  Assam down town University Q11. X takes 'h' hours to mow a lawn. What is the efficiency of X? A. h B. 1-h C. 1/h D. h/(1+h) Q12. If machine X can produce 1,000 bolts in 8 hours and machine Y can produce 1,000 bolts in 24 hours. In how many hours can machines X and Y, working together at these constant rates, produce 1,000 bolts? A. 6 B. 7 C. 8 D. 9 2