Aptitude Questions

Some Questions to practice :
1. Adam can do a job in 15 days, Eve can do the same job in 20 days. If they work together for 4 days on this job. What fraction of job is incomplete ?
a. 1/4.   b. 7/15    c.1/10     d. 8/15
2. 15 men can do a piece of work in 24 days.how many days will required to complete the work by 10 men ?
a. 35      b. 36       c. 37       d. 30
3. 25 men can do a piece of work 8 hours per day in 24 days.how many days will required to complete the work by 16 men, are working 6 hours per day ?
a. 55      b. 50       c. 75       d. 100
4. A can do a piece of work in 75 days & B can do a piece of work in 50 days. how many days will required to complete the work by A and B ?
a. 30      b. 25       c. 125       d. 100
5. A can do a piece of work in 30 days & A&B can do a piece of work in 50 days. how many days will required to complete the work by  B alone ?
a. 30      b. 25       c. 75       d. 150
6. A can do a piece of work in 18 days, B can do a piece of work in 15 days & C can do a piece of work in 12 days. how many days will required to complete the work by A, B and C  ?
a. 540/37            b. 1080/37   
c. 270/37            d.  135/37
7. A can do a piece of work in 30 days, B can do a piece of work in 20 days & A,B &C combinely can do a piece of work in 60 days. how many days will required to complete the work by C alone ?
8. A and B can do a piece of work in 33 days, B and C can do a piece of work in 22 days, C and A can do a piece of work in 11 days. how many days will required to complete the work by A, B and C  ?
a.11         b. 6          c.12           d.60
9. Certain men complete a work in 10 days.if there are 5 men are less,it could be finished in 5 days more.then,number of men originally worked ?
a.10         b.15        c.20     d. 25
10. Certain men complete a work in 10 days.if there are 5 men are more,it could be finished in 5 days less.then,number of men originally worked ?
11. A can complete a work in 20 days.but, A worked for 5 days. Remaining work completed by B in 5 days.so, Both A and B can complete's the work in ?
12. A can complete a work in 20 days, B can complete a work in 15 days. but, A worked for 5 days. Remaining work completed by B alone in how days ?
a. 45/4       b. 11      c. 44       d
13. A can complete a work in 20 days.but, A worked for 5 days. A and B can do  in 25 days.so, B can complete's the work in ?
a. 3       b. 5       c. 15        d. 8
14. A can do a piece of work in 20 days & B can do a piece of work in 15 days. After 13 days B joined with A.how many days will required to complete the work  ?
a. 20      b. 16       c. 15       d. 18
15. A can do a piece of work in 50 days & B can do a piece of work in 25 days. Both are worked 10 days, A left the work.how many days will required to complete the remaining work B alone ?
a. 20      b. 30       c. 10       d. 15
16.1 men or 2 women or 3 boys can do a piece of work in 10 days.then, 1 men+1 women+1 boy can do same piece of work in how many days ?
a. 30/11  b. 60/11  c. 120/11  d.60
17. 5 men or 10 women can do a piece of work in 18 days.6 men and 6 women can complete the work in how many days ?
a. 10     b. 20      c. 30     d. 40
18. The product of two numbers is 125 and hc.f is 5.what is the LCM of two numbers ?
19. If 4 digit smallest number divisible by 9,15,21. What is that number ?
20. If a 3 digit smaller number divisible by 4,12.and 18 and leaves remainder 3 in each case.what is that
number ?
21. If 5 digit biggest number divisible by 4,15 and 21.what is the number ?
22. Find the cars each originally had. A man bought a horse and a cart. If he sold the horse at 10 % loss and the cart at 20 % gain, he would not lose anything; but if he sold the horse at 5% loss and the cart at 5% gain, he would lose Rs. 10 in the bargain. The amount paid by him was Rs._______ for the horse and Rs.________ for the cart.
23. It was calculated that 75 men could complete a piece of work in 20 days. When work was scheduled to commence, it was found necessary to send 25 men to another project. How much longer will it take to complete the work?
24. A dishonest shopkeeper professes to sell pulses at the cost price, but he uses a false weight of 950gm. for a kg. His gain is …%.
25. A software engineer has the capability of thinking 100 lines of code in five minutes and can type 100 lines of code in 10 minutes. He takes a break for five minutes after every ten minutes. How many lines of codes will he complete typing after an hour?
26. A man was engaged on a job for 30 days on the condition that he would get a wage of Rs. 10 for the day he works, but he have to pay a fine of Rs. 2 for each day of his absence. If he gets Rs. 216 at the end, he was absent for work for ... days.
27. A contractor agreeing to finish a work in 150 days, employed 75 men each working 8 hours daily. After 90 days, only 2/7 of the work was completed. Increasing the number of men by ________ each working now for 10 hours daily, the work can be completed in time.
28. 40. The average speed of a train is 1 3/4 times the average speed of a car. The car covers a distance of 588 km in 6 hours. How much distance will the train cover in 13 hours?