Time and Work

1.		Ashish can finish a work in 18 days and Biswas can finish it in half the time taken by Ashish. Then, working together, what part of the same work they can finish in a day?

1/6

1/9

2/5

2/7

2.		Avil and Bimal together can complete a piece of work in 8 days while Bimal and Chandan together can do it in 12 days. All the three together can complete the work in 6 days. In how much time will Avil and Chandan together complete the work?

8 days

10 days

12 days

15 days

3.		Advika and Billy can do a piece of work in 45 days and 40 days respectively. They began the work together but Advika leaves after some days and then Billy completed the remaining work in 23 days. The number of days after which Advika left the work was:

6

8

9

12

4.		Amit and Bishnu can do a piece of work in 12 days and 16 days respectively. Both work together for 3 days and then Amit left. How long will Bishnu take to complete the remaining work?

15 days

12 days

10 days

9 days

5.		Alice is thrice as efficient as Bleek and is, therefore, able to finish a work 10 days earlier than Bleek. In how many days Alice and Bleek will finish it together?

7/2 days

15/4 days

3 days

4 days

6.		Anil alone can complete a work in 10 days while Bikash alone can complete it in 15 days. In how many days can they together complete the same work?

4 days

5 days

6 days

8 days

7.		A and B can do a piece of work in 7 days. With the help of C they finish the work in 5 days. C alone can do that piece of work in?

7/2 days

7 days

35/2 days

10 days

8.		Akrit and Billy can do a piece of work in 72 days. Billy and Chanu can do it in 120 days. Akrit and Chanu can do it in 90 days. In what time can Akrit alone do it?

90 days

100 days

120 days

150 days

9.		10 women can complete a piece of work in 7 days and 10 children take 14 days to complete the same work. How many days will 5 women and 10 children take to complete the work?

6 days

7 days

8 days

9 days

10.		Alice is thrice as good as workman as Bony and therefore is able to finish a job in 40 days less than Bony. Working together, they can do it in:

15 days

18 days

20 days

25 days