IBM Placement-Paper

APTITUDE

1. 2 pipes A and B can fill a tank in 30minutes and 20 minutes respectively. B filled ¾ of the tank. Then for the rest both A and B filled the tank. How much time it took to fill the entire tank.

2. 5 monkeys eat 5 bananas in 5 minutes. Then how many monkeys can eat 20 bananas in 20 minutes.

3. A does a work in 20 days. A did for 28 days. Then b came. They together take 76 days to complete the 7 job. Find howmany days B complete a work.

4. My house number is
   if not multiple by 3 it is with in 50-59
   if not multiple by 5 it is with in 60-69
   if not multiple by 10 it is with in 70-79
   find house number.

5. After 6 years the ratio of age of X and Y will be 5:6. Before 6 years it was 3:4. Find the age of younger one.

6.  The arithmetic mean of two numbers is 10 and the geometrid mean is 8. Find the two numbers.

7. 3 consecutive non zero number which of these will result a positive odd integer.
   1. x+y+z
   2. xy-z
   3. x-y-z

8. 420 km distance. It goes at a speed of 10km/hr less than it took 1.4 hour. Find the initial speed.

9. Tem, Harry and Dick are three friends. From these two are musicians.
   Tem—-Harry
   Shorter one is older musician.
   Harry—-Dick
   Shorter one is younger musician.
   Dick—–Tem
   Taller is the younger musician.
   Find the two musician.

10. A’s mother is only daughter of B’s mother. B is A’s what.

11. In a 20 liter mixture of milk and water, the ratio of milk and water is 3:1. How much milk is to be mixed with the mixture so as to make the ratio 4:1.

12. For a party 240 guests were invited. Contractor have gained 12.5% profit. But 30 guests were absent. He charged the same amount for a meal and lost 100 rupees. How much a meal costs.

13. Out of three A,B,C one is thief. All give two statements. One is false another is true. Find the thief.
    A-i did not do, B did not do.
    B-i did not do, C did not do.
    C-i did not do, I donot know who did it.

14. The sides of an isocles tringale are given. The perpendicular distance is given. Find the base of the tringale.(Numerical values are given, but I donot remember)

15.  In a tringale length of 3 sides are given. It is given to find the highest length of scale which can be used to measure all the sides.(To find gcf).

16. There is a metallic cylinder of radius r and height h is melted. If the radius of smaller cylinder is r/10 and height is h/10, then howmany small cylinders are made from the molten.

TECHNICAL

18. What is weak typing.

19. What is pure virtual function.

20. Which is not a member of unix shell.  (rbash,cbash,nbash,kbash,gbash)

21. Which is an error.
    Int *p[3]
    Int (*p)[3]
    (Int *)(int ,int)
    Int (*p[3])
    Int *(p[3])

22. Which is not a processor.
    (intel,duran,Celeron,athelon)

23.  a[5]=={1,2,3,4,5}
    printf(“%d”,a[3]);
    printf(“%d”,3[a]);
    printf(“%d”,*(a+3);

24. what is the output.
    if(r= =5!= =4)
    printf(“inside”);
    else
    printf(“outside”);
    printf(“%d”,r);

25. for(i=0,j=0;i<10,j<10;i++,j+);
    printf(“%d”,j);  (compilation error,run time error,0)

26. Which is not an inter process communication.
    (tee,shared memory,pipe,queue,file)

27. for loop on string.

28. Which is not a database.
    (oracle,smalltalk,db2,Sybase)

29. #define prod((a>b)?a*a:b*b)
    int p==0,q==-1;
    prod(p++,q++)
    what is result.

30. what is reference.
    Some loop statements on “c” are given which are very easy.