Time and Work Questions Answers Online Quiz Test

• 1. Worker A takes 8 hours to do a job. Worker B takes 10 hours to do a job. How long should it take both A and B, working together to do same job.

  1. $$\begin{aligned} \frac{4}{9} \end{aligned}$$
  2. $$\begin{aligned} 2\frac{4}{9} \end{aligned}$$
  3. $$\begin{aligned} 3\frac{4}{9} \end{aligned}$$
  4. $$\begin{aligned} 4\frac{4}{9} \end{aligned}$$

• 2. A and B can together complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work ?

  1. 4 days
  2. 5 days
  3. 6 days
  4. 7 days

• 3. A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work ?

  1. 5 days
  2. 6 days
  3. 7 days
  4. 8 days

• 4. A can finish a work in 18 days and B can do same work in half the time taken by A. then working together, what part of same work they can finish in a day

  1. 1\5
  2. 1\6
  3. 1\7
  4. 1\8

• 5. A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat ?

  1. $$\begin{aligned} 3\frac{1}{5} min \end{aligned}$$
  2. $$\begin{aligned} 3\frac{2}{5} min \end{aligned}$$
  3. $$\begin{aligned} 3\frac{3}{5} min \end{aligned}$$
  4. $$\begin{aligned} 3\frac{4}{5} min \end{aligned}$$

• 6. A is twice as good as workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work.

  1. 27 days
  2. 54 days
  3. 56 days
  4. 68 days

• 7. A man can do a piece of work in 5 days, but with the help of his son he can do it in 3 days. In what time can the son do it alone ?

  1. $$\begin{aligned} 7\frac{1}{2}days \end{aligned}$$
  2. $$\begin{aligned} 6\frac{1}{2}days \end{aligned}$$
  3. $$\begin{aligned} 5\frac{1}{2}days \end{aligned}$$
  4. $$\begin{aligned} 4\frac{1}{2}days \end{aligned}$$

• 8. A can do a job in 16 days, B can do same job in 12 days. With the help of C they did the job in 4 days. C alone can do the same job in how many days ?

  1. $$\begin{aligned} 6\frac{1}{2}days \end{aligned}$$
  2. $$\begin{aligned} 7\frac{1}{2}days \end{aligned}$$
  3. $$\begin{aligned} 8\frac{3}{5}days \end{aligned}$$
  4. $$\begin{aligned} 9\frac{3}{5}days \end{aligned}$$

• 9. To complete a work A and B takes 8 days, B and C takes 12 days, A,B and C takes 6 days. How much time A and C will take

  1. 24 days
  2. 16 days
  3. 12 days
  4. 8 days

• 10. A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it

  1. 40 days
  2. 35 days
  3. 30 days
  4. 25 days

• 11. A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in

  1. 15 days
  2. 10 days
  3. 9 days
  4. 8 days

• 12. A can do a piece of work in 15 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. A alone can finish the remaining work in

  1. 5 days
  2. 6 days
  3. 7.5 days
  4. 8.5 days

• 13. A can do a piece of work in 4 hours . A and C together can do it in just 2 hours, while B and C together need 3 hours to finish the same work. In how many hours B can complete the work ?

  1. 10 hours
  2. 12 hours
  3. 16 hours
  4. 18 hours

• 14. A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?

  1. $$\begin{aligned} 35\frac{1}{2} \end{aligned}$$
  2. $$\begin{aligned} 36\frac{1}{2} \end{aligned}$$
  3. $$\begin{aligned} 37\frac{1}{2} \end{aligned}$$
  4. $$\begin{aligned} 38\frac{1}{2} \end{aligned}$$

• 15. A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C

  1. Rs. 300
  2. Rs. 400
  3. Rs. 500
  4. Rs. 600

• 16. 4 men and 6 women finish a job in 8 days, while 3 men and 7 women finish it in 10 days. In how many days will 10 women working together finish it ?

  1. 30 days
  2. 40 days
  3. 50 days
  4. 60 days

• 17. A piece of work can be done by 6 men and 5 women in 6 days or 3 men and 4 women in 10 days. It can be done by 9 men and 15 women in how many days ?

  1. 3 days
  2. 4 days
  3. 5 days
  4. 6 days

• 18. A can do a certain job in 25 days which B alone can do in 20 days. A started the work and was joined by B after 10 days. The number of days taken in completing the wotk were ?

  1. $$\begin{aligned} 14\frac{2}{3}kmph \end{aligned}$$
  2. $$\begin{aligned} 15\frac{2}{3}kmph \end{aligned}$$
  3. $$\begin{aligned} 16\frac{2}{3}kmph \end{aligned}$$
  4. $$\begin{aligned} 17\frac{2}{3}kmph \end{aligned}$$

• 19. 10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

  1. 6 days
  2. 7 days
  3. 8 days
  4. 9 days

• 20. A alone can complete a work in 16 days and B alone can do in 12 days. Starting with A, they work on alternate days. The total work will be completed in

  1. $$\begin{aligned} 13\frac{1}{4} \end{aligned}$$
  2. $$\begin{aligned} 13\frac{1}{2} \end{aligned}$$
  3. $$\begin{aligned} 13\frac{3}{4} \end{aligned}$$
  4. $$\begin{aligned} 13\frac{4}{4} \end{aligned}$$