IBM 2000

1. There are 12 persons seated in a room. If one half of the people belong to
group A, one third belong to group B and one forth belong to both the groups.
How many dont belong to any group.

2. 1/5 is what part of 2/3

3. A train passes a point in 20 secs and crosses a bicycle moving in opposite direction with a speed of 8 m/s in 15 secs. What is the length of the train?

4. A freight train starts from a station.After two hours a passenger train travelling with a speed of 60mph.starts from the same station.both the trains meet after four hours after the departure of the passenger train.what is the speed of the freight train?

5.a tank has a capacity of 3750cu.m. there r two taps fixed on it,one filling the tank at 800cu m/min and second tap emptying at a rate of 300 cu m/min.if the two taps r opened sccessively for one minute each,then after how much time the tank gets completely filled?

6.the contract for painting three houses is given to three people.a can paint each house in 6 days,b in 8 days & c in 12 days.a starts the work & continues for 8 days,b continues the work for 6 days then in how many days c can finish the work?

7.one edge of a square is the centre of a circlewith the two sides adjoining the edge of the square becoming the radii of the cirle.if the length of thearc described by the two radii(the two sides of the square)is 2 units.what isthe perimeter of the square.

8. c----------------D
|
|
|
|
-----------
A B
AB is perpendicular to BC, bc perpendicular to CD
AB=8 cm
BC=5 cm
CD=4 cm
what is the shortest distance from A to D?

9. If 6 squares of equal size are placed side by side to form a rectangle of perimeter 294cm, find the perimeter of each square.

10.What is the length of a parrallelopiped of sides 3,4,7cms.

11.Correct definition of pi is
a. 3.14
b. 3.141257
c.22/7
d.ratio of circumferance and diameter
e. none of the above

12.A fooball team played 60 matches out of which 30% were won by them. If they start winning all the next matches after how many matches will the average winning rate be 50%

13.difference of ages of 2 persons is 9 and difference of squares of the ages is 459. What is the age of the older person.

14. There is a rectangular field of 110x70 cm size. If it is to be fenced such that the fence is placed alternative with a gap of 10cm and the fence should be present at the four corners. taking $2 per cm of fence. Find the cost of fencing.

15. the figure having one line of symmetry
a. square
b. equilateral triangle.
c. isosceles triangle
d. rectangle

16. Which is greater?
a. 0.3
b. (0.3)^.5
c. 2/5
d.

17. If there are persons named 1 to n. If each person handshakes with all other persons whose no. is more than him, then how many handshakes are possible.

18. maximum value of 3x^2-4x+7

for travelling from A to C there are three choices
1. through a bridge from A to C of 20 miles length having a toll of 75 cents per person
2. through a tunnel from A to C of 10 miles length having a toll of 25 cents per person
3. a toll free highway from A to B(eastwards)of 20 miles and then B to C (north west) 10 miles

19. which will be most economical?
bridge
tunnel
highway
none

20.if he wanna reach earliest what will he choose?

21.if the employer of a firm going from A to C deducts some % of his basic salary which he will choose(what factor will influence his preference) bridge with less traffic tunnelcost of gasolene cost of toll on three modes

22.What is the shortest mode of travel from B to C
bridge
tunnel
highway
none

23. what is the number of multiplications u have to undergo to multiply two 2x2 matrices

24.what is the angle subtended by the hands of a clock when it is quater past one

25.if a particle is moving in a circle with const angular velocity then
a. radial acc. =0 tangential acc. =0
b. <>0 =0
c. =0 <>0
d. <>0 <>0


# what does > and >> signify in UNIX?

# int n;
k=n;
result=1;
while(k>1)
{
result*=k;
k--;
}
What does this program do?
a. calculates the factorial for n<0
b. calculates the factorial for n>0
c. b is right if the foll is added
if(n<=1)
result=1;
ans=b

#Which one is not an aspect of relational database
a. tree like structures
b. records
c. fields
d. tables

#if right to left operation is done instead of left to right then find the value of
7-(16/(3+1)*2)-4

#what is the difference between Dos in windows and DOS in MS-DOS mode?
they occupy diff. memory they are same windows can access some special files

#char. of RAM
finite,temporary and fast

# main()
{
int num[6]={2,3,4,18,44,17}
j=5;
printf("%d%d",*(num+j),j[num]
}
ans 17 17

# n=5
while(n>1)
{
for(i=1;i LESS THAN n;i++)
product *= i;
return(product);
}
output=?
ans=junk value

#main advantage of using pointers?
ans=pointers can be used to return more than one value from a function

#what is the main aspect of computers over calculators
a. computers are complex to understand
b. computers are huge and expensive
c. more than one person can work on a compu
d. compu can perform logical calculations as well as arithmatic