Question

11 Verify a-(- b) = a + b for the following values of a and b.

a = 118 , b = 125

12 A vehical covers a distance of 45.6 Km in 2.4 liter of petrol. How much

distance will it cover in 1 liter of petrol ?

13 A batsman scores the following runs in eight inning;

40, 35 , 46, 45, 0, 100, 58, 76.

Find the mean score.

14 What other name can you give to the line of symmetry of

(a) a circle ? (b) an isosceles triangle ?

15 If two cubes of dimensions 2cm X 2cm X 2cm are placed side by side,

what would be the dimensions of the resulting cuboid be ?

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SECTION –C (6x3=18 marks)

16 Find the product , using suitable property;

26 X( - 50) + ( - 50) X ( - 36)

17 Arrange the following in descending order;

5 /4, 7 /8, 11 /16

18 The score of 15 students in science test is as follows ;

25 , 23 , 20 , 19 , 9 , 20 , 15 , 10 , 5 , 16 , 25 , 20 , 24 , 12, 20.

19 Solve the equation by trial and error method ; 6m + 2 =20

20 Find the order of rotation and angle of rotation for the following;

(a) square (b) equilateral triangle (c) circle

21 What cross- sections do you get when you give a

(i) vertical cut (ii) horizontal cut to the following solids ?

(a) a matchbox (b) a die (c) a b’day cap ​

Answer 1

Step-by-step explanation:

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