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\ 06-Jan-2025 Bharat Arora Proof-3 Reader’s Sign _______________________ Date __________
6. (a) A = 4, B = 7 (b) A = 8, B = 1 (c) A = 7, B = 4 CHAPTER ASSESSMENT
(d) A = 9, B = 0, C = 3 or A = 3, B = 0, C = 9 or A = 4, B = 5, C = 6 A. 1. (d) 2. (a) 3. (c) 4. (d) 5. (a)
Quick Check B. 1. (a) 2. (a) 3. (a) 4. (a)
BE HAPPY C. 1. 100a + 10b + c 2. 9 3. 24 4. 13 5. 8
D. 1. False 2. False 3. False 4. True 5. False
Quick Check
E. 1. (b) 2. (d) 3. (c) 4. (a)
1. 1 2. 52 3. 33; 55
F. 2. (a) A = 3, B = 9 (b) A = 5, B = 4, C = 1
Think and Answer (c) A = 8 (d) A = 7, B = 2
1 (e) P = 1, Q = 3, R = 2 (f) A = 4, B = 7
1 1 (g) A = 6, B = 5, C = 4
1 2 1 3. A = 6, B = 3, C = 3
1 3 3 1 4. x = 65 and y = 45
1 4 6 4 1 5. A = 1, B = 7, C = 4, D = 6, E = 8, F = 2, G = 5, H = 9, I = 3 (Answer may vary)
1 5 10 10 5 1 6.
1 6 15 20 15 6 1 60, 120, 180, 240, 300 (Answer may vary)
7 2 9
Practice Time 15B
1. 1923552016152012015 2. 21668 3. 54 8. 8 6 4
4. (a) 14, 12, 17 (b) 4, 16, 5
5. (a) 24, 32, 36 (b) 18, 486, 1458 3 10 5
10. (a) A = 3, B = 0, C = 1 (b) A = 4, B = 1
9 2 7 3 10 5
6. (a) 4 6 8 (b) 8 6 4 (c) 125 or 250 (d) A = 6
5 10 3 7 2 9 Model Test Paper – 2
Quick Check A. 1. (c) 2. (a) 3. (b) 4. (c) 5. (a)
1. Divisible 2. Divisible 3. Not divisible 4. Divisible 6. (b) 7. (d) 8. (c) 9. (c) 10. (d)
Think and Answer 11. (d) 12. (c)
B. 1. (0, 0) 2. x-axis 3. 13 4. 2 5. regular
1 or 6
C. 1. False 2. True 3. False 4. False 5. True
Quick Check D. 1. 249975
1. (b) and (d) 2. (a) and (d) 2. Polyhedrons Faces Edges Vertices
Practice Time 15C (a) Hexagonal Prism 8 18 12
1. Divisible by 3, but not by 9. 2. a = 1 3. a = 1, b = 2 (b) Triangular pyramid 4 6 4
4. x = 5, y = 8 5. 360 6. Yes 7. 5 (c) Square pyramid 5 8 5
8. 124 (Answer may vary) 9. 2, 5 and 8
10. 3 or 7 3. 0.2 m
–4
Mental Maths 4. 1.88 × 10
2
1. 2 2. 0 3. 6 4. 2 5. 127 cm
6 –1 4 6. `1,98,000
5. 19 3 9 5 14 3 5 6. 8 7. 1 3 5 4 8
−
Brain Sizzlers 2 7 0 7. 5 8. (a) Yes (b) Yes 9. 26
8 10. (a) 30 thousands
(b) July
1. 4 7 2. 5 (c) March
6 9 3 (d) 65 thousands
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