RAJ and RAJA can separately do a piece of work in 20 and 15 days respectively. They worked together for 6 days, after which RAJA was replaced by RATUL. If the work was finished in next 4 days, then the number of days in which RATUL alone could do the work will be :

40

30

20

10

50

M can do a particular work in 6 days . N can do the same work in 8 days. M and N signed to do it for Rs. 4000. They completed the work in 3 days with the help of P. How much is to be paid to P?

400

300

5000

500

200

A PROJECT can be done by a certain number of workers in 20 days. But it requires less than 20 workers to build it in 30 days. How many workers will build it in 50 days?

15

25

24

20

41

D can do a piece of work in 10 days working 10 hours a day. The work is started by D and on the second day one man whose capacity to do the work is twice that of D, joined. On the third day another man whose capacity is thrice that of D, joined and the process continues till the work is completed. In how many days will the work be completed, if everyone works for five hours a day?

5

4

8

10

12

Efficiency of X is 50% more than Y and Y takes 21 days to complete a piece of work. X started the work alone and then Y joined her 5 days before actual completion of the work. For how many days X worked alone?

5 2/4

5 2/9

5 2/35

5 1/3

5 2/3

There are three pipes, M, N and P, attached to container. M and N can fill the container alone in 20 and 30 mins, respectively whereas P can empty the container alone in 45 mins. The three pipes are kept opened alone for one minute each in the the order M, N and P. The same order is followed subsequently. In how many minutes will the reservoir be full?

51

50

47

49

48

An empty tank whose capacity is 50 litres. There is an inlet pipe N which fills at 7 L/min and there is an outlet pipe J which empties at 6L/min. Both the pipes function alternately for 1 minute. The inlet pipe N is the first one to function, how much time will it take for the tank to be filled up to its capacity?

86

84

95

87

100

A man ‘L’ can do a piece of work in 10 days, man ‘P’ can do the same piece of work in 12 days while man ‘J’ can do it in 15 days. They started work together but after 2 days ‘L’ left the work and the remaining work was completed by ‘P’ and ‘J’ together. Find in how many days will the work be completed.

3 1/4

3 1/5

2 1/3

3 2/3

3 1/3

M and N each working alone can do a work in 12 and 36 days respectively. They started the work together but M left after sometime and N finished the remaining work in 4 days. After how many days from the start did M leave?

9

2

6

4

8

20 Males can complete a work in 12 days and 24 children can complete same work in 20 days. 16 males and 8 children started working and worked for 12 days. How many more days are needed to complete the work?

No more days needed.

3

1

4

2