Question

1) Which of the following is not a polynomial?
x + 1, 2
+ 5, x +

, √
+ 3
2) Two cubes each of 5cm edge are joined end to end. Find the surface area of the
resulting cuboid.
3) The blood groups of 30 students of class IX are recorded as follow:
A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B,
A, B, O.
Find the probability of a student has blood group ‘B’.
4) Factorise: 1 – 2ab – (
+

)
5) Construct an angle of 120° and then draw its bisector.( using compass)
6) The dimensions of a cuboid are in the ratio of 1:2:3 and its total surface area is 88
sq.m. Find the dimensions.
7) Factorise:

-
- 9x – 5
8) The height of a cone is 16 cm and the base radius is 12cm. Find CSA and volume of
the cone.
9) Construct a triangle ABC in which BC= 8cm, angle B= 45° and AB – AC = 3.5cm.
Write steps of construction.
10) Find ‘a’ and ‘b’ if x + 1 and x +2 are factors of
+ 3

- 2ax + b.
11) A card is drawn from a well shuffled pack of 52 playing cards. Find the probability
of getting (i) a black card (ii) a red queen (iii) an ace (iv) a face card (ii) a non
face card
12) The curved surface area of a right circular cylinder is 5280 sq. cm. and the
circumference of its base is 88cm. Find the volume of the cylinder.
don't copy step step and pls

Answer 1

1.x+√3

2.Given,

Edge of the cube =5 cm

After joining two cubes,

Total length, l=5+5=10cm

Breadth, b=5cm and

Height, h=5cm

∴ Surface Area =2(lb+bh+lh)

=2(10×5+5×5+5×10)

=2×125

=250cm 2

3.4/30

5.