What is the curriculum of NSEJS

QP 1006

SECOND TERM ASSESSME


ASSESSMENT
MATHEMATICS

Hours: 8 Max Marks: 80


Date: 03/27/2019 No. of Questions: 07
Duration: 2 hrs No. of Printed sides: 04
(Answers to this paper must be written on the paper provided separately.
All working including rough work must be clearly shown and must be done
on the same sheet as the rest of the answer. Omission of essential
working will result in loss of marks. Thee intended marks for questions or
parts of questions are given in brackets [].

In Section A, Question Nos. 1, 2 and 3 are compulsory. Attempt any three


questions from Question Nos. 4 to 7)

Section
ection A (60 marks)
Attempt all questions from Question Nos. 1 to 3

Question 1 [10 marks]


a) Factorise: 3 11 10 [3]

b) A shopkeeper purchased a sewing machine for 12000. He sells it at a


discount of 10% and still makes a profit of 8%. Find: [3]
i) S.P. ii) M.P.

c) What number should be added to each of the numbers 3, 5, 13, 19


so that the resulting numbers may be in proportion. [4]

Question 2 [10 marks]



a) If 2 8 16 = 1, find ‘n’, using laws of exponents. [3]
4 16
b) If the wages of 15 laborers for 6 days are r7200,7200, find the wages of 23
laborers for 5 days. [3]

c) Construct ∆ ABC such that AB = 5.3 cm, AC = 4.8 cm and altitude AM to


BC is 4.2 cm. Measure BC. [4]

1 P.T.O.
Std 8: Mathematics page 2

Question 3 [10 marks]

a) The daily wages of 60 workers in a factory are given in the following


frequency distribution table. [3]

Wages (in r) No. of workers

0 – 50 9

50 – 100 6

100 – 150 8

150 – 200 12

200 – 250 15

250 – 300 10

Total 60

From the data given above, determine:

i) the class size.


ii) the class mark of the 6th class.
iii) the number of workers earning r150 and more.

b) The ratio between the exterior angle and the interior angle of a regular
polygon is 1: 8. Find the measure of each exterior angle and the number
of sides. [3]

c) Solve the following equations by cross multiplication method: [4]

i) 3-5 = 19; −7 3 = −1

Attempt any three questions from Question Nos. 4 to 7

Question 4 [10 marks]

a) The perimeter of a parallelogram is 28 cm and the ratio of the adjacent


sides is 3: 4. Find the sides of the parallelogram. [3]

b) If a + b + c = 9, a2 + b2 + c2 = 29, find ab + bc + ac [3]

2 P.T.O.
Std 8: Mathematics page 3

Question 4 continued

c) In the figure given below, ABCD is a square and ABE is an equilateral


triangle. Prove that: [4]

i) ∠EAD = ∠EBC ii) DE = CE.

D C
E.

A B

Question 5 [10 marks]

a) Taps A and B can fill a tank in 4 hours and 6 hours respectively and
tap C (at the bottom) can empty it in 12 hours. If all the three taps are
opened together when the tank is empty, find after how many hours, the
tank will be full. [3]

b) Find the area of ​​an equilateral triangle of side 8 m correct to 3 significant


figures. Use √3 = 1,732. [3]

c) Solve the inequation −3 ≤ 3 - 2 <9, ∈, write the solution set and


represent it on a number line. [4]

Question 6 [10 marks]

a) The length, breadth and height of a cuboid are in the ratio 7: 6: 5. If the
surface area of ​​the cuboid is 1926 cm², find its volume. [3]

b) If! = 5,! = 6, find! . [3]

c) Calculate the C.I on r12,500 for 2 years at 6% per annum. [4]

3 P.T.O.
Std 8: Mathematics page 4

Question 7 [10 marks]

a) The diagonals of a rhombus are 8cm and 6cm. Find: [2]

i) area of ​​the rhombus and


ii) perimeter of the rhombus.

" " "


b) Solve: - = 3 - [4]
# $

c) A copper wire when bent in the form of a square, encloses an area of


121 cm². If the same wire is bent to form a circle, find the area of ​​the
circle. [4]

Section B - 20 marks

: on / 12.03.2019 4