1 A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:   1 4 days 2 6 days 3 8 days 4 12 days   Answer: Option2

2 Babu and Asha can do a job together in 7 days. Asha is 7/4 timesas efficient as Babu. The same job can be done by Asha alone in   1 22 days 2 21 days 3 11 days 4 9 days   Answer: Option3

3 A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:   1 20 days 2 $22\frac{1}{2}days$ 3 25 4 30   Answer: Option2

4 Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?   1 7 hours 30 minutes 2 8 hours 3 8 hours 15 minutes 4 8 hours 25 minutes   Answer: Option3

5 X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?   1 6 days 2 10 days 3 5 days 4 20 days   Answer: Option2

6 A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:   1 $9\frac{1}{5}days$ 2 $9\frac{2}{5}days$ 3 $9\frac{3}{5}days$ 4 10   Answer: Option3

7 If 80 persons can finish a work within 16 days by working 6 hours a day, the number of hours a day, should 64 persons work to finish that very job with-in 15 days is:   1 5 hrs. 2 7 hrs. 3 8 hrs. 4 6 hrs.   Answer: Option3

8 5 men and 2 women working together can do four times as much work per hour as a man and a woman together. The work done by a man and a woman should be in ratio:   1 1:2 2 2:1 3 1:3 4 4:1   Answer: Option2

9 5 persons can prepare an admission list in 8 days working 7 hours a day. If 2 persons join hem so as to complete the work in 4 days they need to work per day for   1 10 hours 2 9 hours 3 12 hours 4 8 hours   Answer: Option1

10 If 10 men or 20 boys can make 260 mats in 20 days, then how many mats will be made by 8 men and 4 boys in 20 days?   1 260 2 240 3 280 4 52   Answer: Option1