Question

class 8 model paper maths ​

Answer 1

Answer:

SECTION – A

1. b

2. a

3. b

4. a

5. b

SECTION – B

6. For making denominator same ½ mark

For writing 3 rational nos. 1 ½ mark

7. 8x – 3 = 6 x cross multiplication ½ mark

For correct steps & for correct answer 1 ½ mark

8. For some of four angles in a quadrilateral is 360o

½ mark

For correct steps and for finding value of x 1 ½ mark

9. Forming two numbers --- x, x+15 1 mark

Finding the numbers 1 mark

SECTION – C

10. For drawing number line 1 mark

For correct representation 2 marks

11. If x is a multiple of 8, the next multiples are x+8 and x+16 1 mark

X + (x+8) + (x+16) = 888

For solving x ½ mark

X = 288, x+8 = 296, x+16 = 304 1 ½ marks

12. Let the ages of Hari & Harry are 5x, 7x 1 mark

According to the problem, (5x + 4) ÷ (7x + 4) = ¾ 1 mark

For solving and correct answer 1 mark

13. For simplification & correct answer each 1 mark

Answer is ½

14. LR = LN = 70o

(Opposite angles of a parallelogram) 1 mark

LR and LI are (supplementary angles) 1 mark

LI = 180o

– 70o

= 110o

1 mark

SECTION – D

15. For each correct simplification and correct property 1 mark each

16. Let the age of Shriya is x years. ½ mark

Age of Arjun 2 x years 1 mark

ATP. 2x - 5 = 3 (x-5) 1 mark

For finding x and correct answer 1 ½ marks

17. 40o

+ z = 70o

(corresponding angles of parallel lines HE & OP) 1 ½ mark

Z = 30o

Y = 40o

(Alternate interior oppoisite angles of parallel lines HO & EP) 1 mark

Linear pair 180o

– 70o

= 110o ½mark

Therefore x = 110o (Opp. Angles of parallelogram are equal) 1 mark

(OR)

Ans: Square and Rhombus including figures 2 marks

Square and Rectangle including figures 2 marks

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