Time and Work Problems in Maths - Aptitude Questions & Answers

1. Ashish can finish a work in 12 days, Abhay can finish a work in 15 days. After Ashish had work for 3 days and Abhay also join Ashish to finish the remaining work. In how many days they will finish the remaining work ?

a)10
b)3
c)5
d)7

2.  Mohit can complete a job  in 9 days, Rajan in 10 days and Vineet in 15 days. Rajan and Vineet start work together and are force to leave after 2 days. The number of days taken by Mohit to complete the remaining  work ?

a)3
b)7
c)1
d)6

3. Ishan and Saurabh can do work separately in 9 and 12 days respectively. If they work for a day alternatively. Ishan begin the work , In how many days work will be  finish?

a)10.25
b)8
c)14
d)12

4. Two ladies Amisha and Sonia are working separately can do a work in 8 and 12 hours respectively. If they work one hour alternatively. Amisha begin at 9 am, when will the work finish?

a)7:20pm
b)8pm
c)6:30pm
d)5pm

5. Ayush can do a job in 12 days, Pawan can do a job in 15 days. They work together for 2 days then Pawan  leave the work and Ayush alone continued the work. After 1 day Nitish join Ayush and work is completed in 5 more days. In how many days can Nitish do it alone?

a)21
b)25
c)27
d)26

6. Girish and Shreyas can do a piece of work in 20 and 30 days , both start the work together for same time but Shreyas leave the job 5 days before the work is completed. Find the time in which work is completed?a)12

b)17

c)9

d)14

7. Two workers Ankit and Sachin are engaged to do a work. Ankit  working alone takes 8 hours more to complete the job than if both worked together. If Sachin worked alone , he would need 4.5 hours more to complete the job than they both working together. What time would they take to do the work together?

a)6

b)7

c)5d)8.5

8. Shritika is twice  as good as tannu and together they finish a piece of work in 18 days. In how many days Shritika alone will finish it?

a)27

b)28

c) 30

d)25

9. Sumit work twice as fast as Pankaj. If Pankaj  can complete the work in 12 days, the number of days in which Sumit and Pankaj complete the work?

a)11
b)4
c)6
d)8

10. Monica and Priyanka  can do a job together in 7 days, Monica is 7/4 times as efficient as Priyanka.  The same job can be done by Monica alone in ?

a)13
b)15
c)16
d)11

11. Aishwarya can do a piece of work in 20 days. Tanya is 25% efficient than Aishwarya. The number of days by Tanya will do the same work?

a)15

b)17

c)16

d)20

12. Melvin is 50%  more efficient than feroz. Vineet does half of the work done by Melvin and feroz  together. If Vineet does the work in 40 days then Melvin, feroz and Vineet together can do the work in?

a)10.33

b)12

c)13.33

d)11

13. Tarun is thrice as good as Mohan  and Tarun  is able to finish the job in 60 days less than Mohan. Working together they can do it in?

a)23.5

b)25.6

c)22.5

d) 21.5

14. Rajender does half as much work  as Narender in 3/4 of the time, If together they take 18 days to complete the work . How many days Narender take?

a)30

b)33

c)32

d)38

15. If 12 men or 18 women can do a work in 14 days , then number of days that 8 men and 16 women will take the same work in?

a)9

b)12

c)17

d)11

16. Krishna and Abhishek can complete a work in 12 days , Abhishek and Deepak  in 20/3 days, Krishna work for 3 days, Abhishek work for 4 days and Deepak finish in 7 days. How long each of them will take to complete the work separately?

a)30, 20, 50

b)20, 10, 25

c)30, 20, 10

d) 30, 10, 40

17. A contractor undertakes  to dig a cannel 12 km long in 350 days and employ 45 men, after 200 days. He find that only 4.5 km of the cannel has been completed. Find the number of extra men he must employ to finish the work in time?

a)57

b)55

c)58

d)60

18. A builder decide to build a farmhouse in 45 days, he employed 150 men in the beginning and 120 men more after 30 days complete the work in time, if he had not employed additional men then how many extra schedules days it will take?

a)15

b)12

c)13

d)14

19. There is a efficient food for 300 men for 32 days after 29 days 210 men leave the place. For how many days will the rest of the food left for the rest of the men?

a)14

b)12

c)17

d)10

20. Nitin and Rakesh together can do a piece of work in 30 days. Nitin having work for 16 days, Rakesh finish the remaining work alone in 44 days. In how many days Rakesh finish the whole work?

a)50

b)40

c)60

d)70

                                     Answer Sheet

1.(C)   2.(d)   3.(a)   4.(c)   5.(b)   6.(d)   7.(a)   8.(a)   9.(b)   10.(d)   11.(c)   12.(a)   13.(c)   14.(a)   15.(a)   16.(c)   17.(b)   18.(b)    19.(d)   20.(c)