2011
MATHEMATICS
1] A regular polygon
has 150o (degree) as
the size of each
interior
angle. How much
many sides does it
have?
a} 12 b} 10 c} 9 d} 8
2] What is the value of
r' if the distance
between the points
(4,
2) and (1, r') is 3 unit?
a} 1 b} 2 c} 3 d} 4
3] What is the mean
deviation of x, 2x, x +
1
and 3x, if their mean is
2 ?
a} 0.5 b} 1.0 c} 1.5 d}
2.0
4] In how many ways
can 9 people be seated
if 3 chairs are
available ?
a} 720 b} 504 c} 336
d}
210
5] In how many ways
can a delegation of 3
be
choosen from 5 men
and 3 women, if at
least
i man and 1 woman
must be included ?
a} 15 b} 28 c} 30 d} 45

6] What value of x will
make the function x(4
-
x) a maximum ?
a} 4 b} 3 c} 2 d} 1
7] A chord is drawn
5cm away from the
centre of a circle of
radius 13cm. Calculate
the lenght of the
chord ?
a} 7cm b} 9cm c}
12cm
d} 24cm
8] Find the radius of a
sphere whose surface
area is 152cm2
(square) ?
a} 7.00cm b} 3.50cm
c} 3.00cm d} 1.75cm
9] The propability of a
student passing any
examination is 2/3. If
the studend takes
three
examinations, what is
the propability that he
will not pass any of
them ?
a} 2/3 b} 4/9 c} 8/27
d}
1/27
10] If the surface area
of
a sphere is increase by
44%. Find the
percentage increaser
in
its diameter ?
a} 44 b} 30 c} 22 d} 20
11] Subtract 164189
from 186309
a} 11219 b} 21129 c}
21139 d} 22119
12] IF 55X +52X =
7710X
FIND X ?
a} 5 b} 6 c} 7 d} 10.cntinues,