KENDRIYA VIDYALAYA HVF AVADI

PRACTICE PAPER(2008-09)

CLASS VIII MATHEMATICS Max. Mark 100

PART-A(10x1= 10)

Answer the following

1) RENT is a rectangle. Its diagonals meet at a O. Find x, if OR = 2x +4 and OT = 3x + 1

N E

T R

2)Find the number of sides of a regular polygon whose each exterior angle has a measure

of 45

3) Number 1 to 6 are written on 6 separate slips. (one number on one slip), kept in a box and mixed well. One slip is chosen from the box with out looking into it. What is the probability of getting prime number?

4) How many numbers lie between squares of 12 and 13?

5) Find the cube root of 13824 by prime factorization method.

6) Using Euler’s formula find number of edges of the polyhedron which has 20 faces and

12 vertices.

7) Find A and B 3 A

2 5

B 2

8) Find the value of (2

9) Factorice

10) PQRS is a trapezium . PQ=5cm is parallel to RS =3cm. If the height of the trapezium is 10 cm find its area.

PART-B ( 10X3=30 )

11) Using appropriate properties fin -

12) A positive number is 5 times another number. If 21 is added to both the numbers then one of the new numbers becomes twice the other new number. What are the numbers.

13) Solve

14) In a parallelogram RING if m = . find all the other angles.

15) Simplify i)

ii) use appropriate identity to find the product of(4x-5) (4x-1)

16) Draw the map of your class room.

17) Sohan bought a second hand refrigerator for Rs.2500 then spent Rs.500 on its repairs and sold it for Rs.3,300. Find the loss or gain percent.

18) A train is moving at a uniform speed of 75 km/hr.

How far will it travel in 20 minutes?

Find the time required to cover a distance of 250km.

19) Find the side of a cube whose surface area is 2400 cm.

20) Factorise i)

ii)

PART-C (12 X 5 = 60)

21) Ajit can ride a scooter constantly at a speed of 30 kms/hour. Draw a time distance graph for this situation. Use it to find i) the time taken by Ajit to ride 75km,

ii) the distance covered by Ajit in 31/2 hrs.

22) A rectangular paper of width 14cm is rolled along its width and a cylinder of radius 20cm is formed. Find the volume of the cylinder

23)A scooter was bought at Rs.42000 its value depreciated at the rate of 8% per annum. Find the value after one year.

24) Meenu bought two fans for Rs.1200 each. She sold one at a loss of 5% and the other at a profit of 10%. Find the selling price of each. Also find out the total profit or loss.

25) i) subtract 4a-7ab + 3b+ 12 from 12a-9ab+5b-3

ii) Add p(p-q),q(q-r) and r(r-p)

26Find the square root of i) 390625

ii) 31.36

Or)

Find the smallest square number that is divisible by each of the numbers 4,9,10.

27)Area of a square plot is 2304cm . Find the side of the square plot.

(Or)

There are 2401 student in a school P.T teacher want them to stad in rows and columns such that the number of rows is equal to the number of columns. Find the number of rows.

28)Draw a pie chart of the data given below time spent by a child during a day

Sleep / 8 hours
School / 6 hours
Home work / 4 hours
Play / 4 hours
Others / 2 hours

29) Construct a quadrilateral BOLD with OL=7.5 cm , BL = 6cm, BD = 6cm , LD = 5 cm OD= 10 cm.

(Or)

Construct a parallelogram MORE with OR=6cm, RE= 4.5cm, EO= 7.5 cm

30) If ABCD is a parallelogram then write all the properties of the same.

D C

A B

OR

Write all the properties of square with rough diagram

31)  Find the smallest number by which each of the following numbers must be multiplied to obtain a perfect cube. i) 104

ii) 81

32)  Evaluate i)

ii) if find ‘m’

END