There are 7 questions
Q
1) If a:b = 2:3
and b: c =
6: 7, then a:b:c equals
A) 3:4:5
B) 4:6:7
C) 1:2:3
D) 5:6:7
Q
2) A paper is in form of a rectangle ABCD in which AB = 20 cm and BC = 14
cm. A semicircular
portion with BC as
diameter is cut of. The area of the remaining portion is
A) 20 ´
14 - p(14)²
B) 20´
14 – 2 p(14 )
C) 20´
14 –p ( 7)²
D) none
Q
3) If two dice are thrown, what is the probability that atleast one of the
dice show a number greater than 3.
A) 1/.2
B) 6/7
C) 5/6
D) ¾
Q
4)
What
is printed in STEP 4 when the program below is executed
STEP 1 X = 150, Y = 100
STEP 2 If (2X >3Y)
then X
← X+Y
else X
← X - Y
STEP 3 If (( X > 200) and ( Y <
50))
Then X ← X/Y
Else X
← XY
STEP 4
Print the value of X.
Q
5) The arithmetic mean of the set of “n” observations---1,
2,3,…………..n is
A) (n+1)/2
B) n/2+1
C) n/2
D)(n-1)/2
Q
6) which of the following sets is finite ?
A) all positive rational numbers between 8 and 9
B) all prime numbers between 10 and 100
C) all rational numbers with decimal representations which are
terminating.
D) all integers greater than 100.
Q
7) Which of the following is true for the parabola y² = 8x + 48.
A) focus = (4,0) , axis of symmetry
x= 0.
B) focus = (0,4), axis
of symmetry x = 0
C) focus = (0,-4) , axis of symmetry x = y.
D)
focus = (-4,0), axis of symmetry y = 0