Page 397 - Start Up Mathematics_8 (Non CCE)

Section B Section C

6 3. (a) Perimeter (b) 3 (side)
Ê 2ˆ
2
11. Á ˜ 12. 592640 13. x – 3x + 2 (c) Inclusive and exclusive
3 ¯
Ë
Ê 3+ 7 ˆ Ê 3- 7 ˆ 9 (d) pie chart (e) 1
14. Á Ë 2x + 2 ¯ Ë 2x + 2 ¯ ˜ 15. x = 25 Section D
˜ Á
16. 4 men 17. ` 5 4. (a) A = ( ss a- )(s b- )(s c- ) where = s abc+ +
2
Section C (b) Space occupied by an object is called volume.
19. Numbers are 12, 18, 24. (c) The data which can take only whole number values is
discrete data.
2
2
20. –16x + 5x + 10 OR 3x + 3x + 2 21. 31 1 h (d) A graphical representation of a frequency distribution
2 of a grouped data.
Section D (e) An experiment in which the exact outcomes are not
22. (a) 1.414 (b) 144 known is called random experiment.
4 4
2
4
2
4
23. (a) p q (p + q )(p + q )(p + q)(p – q) Section E
2
2
(b) {(3u + 2v) + 6}{(3u + 2v) – 12} 5. 594 m 2
24. Speed in still water = 18 km/h, Distance = 80 km Sample Test Paper 6
25. 28.5%
Section A
Sample Test Paper 4 1. C 2. A 3. B 4. B 5. C
Section A 6. C 7. B 8. D 9. C 10. A
1. (a) B (b) D (c) C (d) C (e) C Section B
Section B 11. 40% 12. ` 38,640
2. (a) False (b) True (c) False (d) True (e) False
Section C 13. (a) (b)
3. (a) Cost Price (b) 4 times (c) Perpendicular bisectors
(d) square (e) an equilateral triangle
Section D 14. 72 cm OR 28 cm
2
4. (a) The expenses incurred in packing, cartage, taxes, 15. 1,276 cm OR 100 bricks
labour charges, etc. Section C
(b) The fixed time interval at the end of which the interest 18. x = 120°, y = 35°, z = 20° 19. 9.12 cm 2
is calculated and then added to the principal before 20. A = 4, B = 7
the beginning of the next interval. Section D
(c) Diagonals or rectangle are equal. 22. Sum = ` 125, Rate = 40% per annum
(d) Yes 24. 184.877 cm 3
(e) F + V = E + 2 25. (a) 210 (b) Playing video games
Section E (c) 40 (d) Indoor games
5. 30°, 60°, 120°, 150° 6. Loss % = 1% (e) 40 (f) 60
Problem-Based Learning
Project Work 1. (b) 2. (a) 3. (d) 4. (c) 5. (b)
1. (iv) 2. (ii)
6. (a) 7. (d) 8. (c) 9. (a) 10. (b)
Sample Test Paper 5 11. (a) 12. (d) 13. (a) 14. (a) 15. (b)
16. (b) 17. (a) 18. (d) 19. (a) 20. (c)
Section A 21. (a) 22. (d) 23. (c) 24. (b) 25. (c)
1. (a) C (b) B (c) D (d) B (e) B
Passage 1
Section B 1. (b) 2. (a) 3. (b) 4. (d) 5. True
2. (a) True (b) False (c) False Passage 2
(d) True (e) True 1. (d) 2. (b) 3. (a) 4. (c) 5. False

389