Page 187 - Revised Maths Wisdom Class - 6

Answers 185

7. (b) 8. (d) 9. (a) N, S (b) E, H 10. S 11. (a) 2 (b) 1
12. (a) F (b) F (c) F 13. (b) 14. (c), (d)
Exercise – 9B
1. (a) No (b) Yes (c) Yes 4. (a) 4 (b) 2 (c) 3 (d) infi nite
7. (a) A (b) H (c) O (d) S 8. (a)
9. (a) 3 (b) diagonals (c) infi nite
10. (a) True (b) True (c) True (d) True

REVIEW TIME

A. 2. Infi nite 3. 1 4. Isosceles 5. H 6. No 7. True 9. Eight, Two 10. 8
B. 1. (a) 2. (b) 3. (a) 4. (c) 5. (a) 6. (c) 7. (b) 8. (a) 9. (c) 10. (a)
C. 1. Rectangle 2. one 3. axis of symmetry 4. Refl ection 5. Six
D. 1. T 2. F 3. F 4. T 5. T
E. 1. (a) 2. (b) 3. (b) 4. (c)
F. 1. a 2. b 3. d 4. a
G. 1. (a) 0 (b) 0 (c) 1 (d) 0 (e) 0 (f) 0 (g) 0 (h) 2 (i) 0 (j) 2 (k) 4 (l) 2 (m) 4 (n) 2 (o) 2
2. (a) Yes, 4 (b) Yes, 2 (c) Yes, 3 (d) Yes, 6 (e) Yes, 8
Chapter-10 : Data Handling and Presentation

Exercise – 10A
1. (a) 2. (c) 3. (a) (b)
4. Number Tally Marks Frequency 5. Blood Type Tally Marks Frequency
40 ||| 3 A 5
50 |||| 4 B || 7
55 |||| 4 AB |||| 4
60 | 6 O |||| 9
63 ||| 3 Total = 25
67 ||| 3 The most common blood type is 'O'.
69 || 2
Total = 25

6. Digits Tally Marks Frequency 7. Number of Trains Tally Marks Frequency
0 |||| 4 1 | 1
1 | 6 2 | 1
2 |||| 4 3 5
3 |||| 4 4 |||| 9
4 ||| 3 5 5
5 |||| 4 6 ||| 3
6 ||| 3 7 | 1
7 |||| 4 8 || 2
8 || 2 9 | 1
9 | 6 Total = 28
Total = 40 7 or more trains late = 4 days.
(a) 8 (b) 1 and 9

8. (a) 2.1, 2.2, 2.3, 2.4, 2.5, 2.5, 2.6, 2.7, 2.7, 2.8, 2.8, 2.9, 2.9, 3.0, 3.1
(b) 3.1 kg
(c) 4 babies