Time and Work with Explanation

Q15. 20 women can do a work in 16 days, 16 men can complete the same work in 15 days. Find the ratio between the capacity of a man and a woman?

 A. 5 : 4 B. 3 : 2 C. 3 : 5 D. 4 : 3

Q16. P can complete a job in 60 days less than Q and thus thrice as good a workman as Q. If both are working together in how many days will they complete this work?

 A. 12 days B. 13 days C. 22.5 days D. 14.5 days

Q17. Rohan and Mohan undertook work for Rs. 3200. With the help of Sohan, they finished it in 3 days if Rohan and Mohan can do this work in 6 days and 8 days respectively, what is Sohan's share?

 A. Rs. 400 B. Rs. 450 C. Rs. 500 D. Rs. 600

Q18. Painter P can paint a house in 16 days while painter Q alone in 12 days. Starting with P they work on alternate days, in how many days will they complete it?

 A. 15 days B. 12 days C. 16 days D. 13 days

Q19. 7 men can construct a road in 12 days. They started the work in after five days, two men left. In how many days will the work be completed by the remaining men?

 A. 7 B. 8 C. 9 D. None of these

Q20. X alone can finish work in 23 days and is 30% more efficient than Y. If both are working together in how many days will they complete this work?

 A. 15 days B. 13 days C. 19 days D. 18 days

Q21. Carpenter A can build furniture in 10 days and Carpenter B in 15 days. They work for five days and rest of the work was finished by Carpenter C in 2 days. If they were paid Rs. 1500 for the whole work, find the daily wages of B and C?

 A. Rs. 225 B. Rs. 300 C. Rs. 245 D. Rs. 150