operations on numbers (6.papers)

hcf and lcm (5.papers)

averages (8.papers)

problems on ages (9.papers)

percentage (4.papers)

profit and loss (4.papers)

ratio and proportion (5.papers)

chain rule (5.papers)

time and work (4.papers)

pipes and cisterns (5.papers)

time and distance (5.papers)

problems on trains (8.papers)

boats and streams (7.papers)

partnership (6.papers)

simple interest (4.papers)

compound interest (2.papers)

permutation and combination (3.papers)

clock (2.papers)

calendar (3.papers)

1

Jayaram takes 6 hours to do a job. Rajesh takes 9 hours to do the same job. How long should it take both Jayaram and Rajesh, working together but independently, to do the same job?

3 hours

3.6 hours

4.3 hours

5 hours

Show Answer

2

If Atmika and Bhagya together can complete a piece of work in 8 days. If Atmika alone can complete the same work in 24 days, in how many days can Bhagya alone complete that work?

10 days

18 days

12 days

20 days

Show Answer

3

Antony can do a certain job in 21 days. David is 40% more efficient than Antony. How many days does David alone take to do the same job?

15 days

16 days

18 days

12 day

Show Answer

4

Paul and Johnson undertake to do piece of work for Rs. 2400. Paul alone can do it in 12 days. While Johnson alone can do it in 16 days. With the help of Clinton, they finish it in 6 days. Find the share of Johnson.

Rs. 800

Rs. 675

Rs. 950

Rs. 900

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5

Harish and Peter working separately can paint a building in 18 days and 24 days respectively. If they work for a day alternately, Harish beginning, in how many days, the painting work will be completed ?

20 1/2 days.

10 1/2

15 3/4 days

16 1/4 days

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6

Abhishek, Bunty and Harsha will do a work in 20, 30, 40 days independently. In how many days they can complete the work, working together?

9 1/13 days

7 3/4 days

10 4/7 days

8 2/3 days

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7

Ashish can do 1/2 of a work in 10 days and Karthik can do 1/3rd of the same work in 8 days. What is the ratio of their capacities ?

4 : 7

6 : 5

5 : 6

7 : 4

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8

Vijay and Subbu can do a work independently in 20 days and 24 days. Subbu started the work and did for 6 days. The remaining work was done by Vijay in how many days?

12 days

10 days

15 days

20 days

Show Answer

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10

A work can be done by Arun and Balu is 15 days; by Balu and Chandan in 20 days and by Chandan and Arun in 30 days. In how many days can Chandan alone do the work ?

90 days

100 days

120 days

150 days

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11

The efficiency of Lohith and Lokesh are 3 : 2, the no. of days they can finish a work will be in ratio ?

2 : 3

3 : 2

6 : 5

none

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12

Manish, Narendra and Rakesh can do a piece of work in 15, 20, 30 days respectively. Narendra and Rakesh started the work and after some days Manish joined them. The work was finished in 8 days. From the beginning when did Manish join them?

After 2 days

After 3 days

After 4 days

After 5 days

Show Answer

13

Pranav does a work in 6 days and Suman does the same work in 14 days. In how many days they together will do the same work?

4 days

3 days

3.6 days

4.2 days

Show Answer

Show Answer

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16

Yashwanth takes twice as much time as Rohith or thrice as much time as Eswar to finish a piece of work. Working together, they can finish the work in 3 days. Eswar can do the work alone in :

4 days

6 days

8 days

9 days

Show Answer

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18

Madhav and Raghava can do a work in 16 days, Raghava and Ravi can do the same work in 24 days. Madhav, Raghava and Ravi together can finish it in 12 days. Madhav and Ravi together will do it in :

8 days

10 days

12 days

16 days

Show Answer

19

Watson can do a certain work in the same time in which Steven and James together can do it. if Watson and Steven together could do it in 15 days and James alone in 30 days, then Steven alone could do it in :

25 days

35 days

50 days

60 days

Show Answer

20

Adams and Bush can do a job together in 10 days. Adams is 5/3 times as efficient as Bush. The same job can be done by Adams alone in :

16 days

20 days

24 days

10 days

Show Answer