Page 169 - Maths Skill - 6

Answers 167

1 1 1 1 2 3 1 3
3. (i) 4 (ii) 4 (iii) 5 (iv) 3 (v) 2 (vi) 2 (vii) 2 (viii) 3
5 3 2 8 7 4 5 4
(ix) 3 4 (x) 2 6 (xi) 6 2 (xii) 5 1
5 7 3 8
Exercise - 5.3

2 3 4 5 6 9 12 15 14 21 28 35 4 6 8 10 8 12 16 20
1. (i) ,, , etc. (ii) , , , etc. (iii) , , , etc. (iv) ,, , etc. (v) , , , etc.
4 6 8 10 10 15 20 25 22 33 44 55 6 9 12 15 10 15 20 25
2. (i) Yes (ii) Yes (iii) No (iv) Yes (v) No 3. (i) 2 = 10 = 6 = 12 (ii) 2 = 14 = 6 = 10
3 15 9 18 7 49 21 35

1
(iii) = 5 = 3 = 10 (iv) 1 = 2 = 3 = 5 (v) 3 = 9 = 15 = 33 (vi) 5 = 10 = 15 = 20 4. (i) 7 (ii) 4
2 10 6 20 5 10 15 25 4 12 20 44 7 14 21 28 8 7
(iii) 3 (iv) 5 (v) 8 (vi) 4 (vii) 3 (viii) 7 (ix) 6 (x) 1 (xi) 2 (xii) 1
4 6 27 9 7 8 7 13 7 2
Exercise - 5.4

1. (i) < (ii) < (iii) < (iv) < (v) < (vi) > (vii) < (viii) >
2. (i) 1 < 2 < 5 < 6 < 7 (ii) 8 < 9 < 11 < 12 < 16 (iii) 10 < 15 < 17 < 31 < 39 (iv) 1 < 2 < 6 < 7 < 13
15 15 15 15 15 25 25 25 25 25 72 72 72 72 72 17 17 17 17 17
3. (i) 1 > 1 > 7 > 2 (ii) 9 > 4 > 1 > 3 (iii) 7 > 7 > 3 > 5 (iv) 7 > 3 > 5 > 1
2 3 30 15 10 5 2 15 11 33 22 66 4 8 32 16

Exercise – 5.5

1. (i) 9 (ii) 12 (iii) 73 (iv) 23 2. (i) 7 (ii) 17 (iii) 7 (iv) 77
11 17 77 21 34 25 142 6

(v) 58 (vi) 22 or 11 (vii) 753 or 5 41 (viii) 205 or 7 16 3. (i) 6 (ii) 10
9 2 1 126 42 27 27 15 71

(iii) 6 (iv) 20 (v) 2 (vi) − 2 (vii) − 12 (viii) 12 4. (i) 3 (ii) 19
37 91 31 41 57 119 22 146

(iii) 37 (iv) 37 (v) 62 (vi) 26 (vii) 67 (viii) 17 5. (i) 3 (ii) 13
102 91 69 15 56 12 5 4
1
(iii) 43 (iv) 4 (v) 31 (vi) 5 6. Rekha, 1 hour 7. 5 km 8. 3 L
12 11 24 12 6 4 4
Assessment Time

A. 1. (ii) 2. (i) 3. (iii) 4. (iv) 5. (iii) B. 1. 8 2. unit 3. less 4. improper 5. 4 6
,
14 21
C. 1. False 2. True 3. True 4. False 5. True D. 1. 5 2. 1 3. 1 4. 4
18 36 10 9
E. 1. (b) 2. (a) 3. (a) F. 1. 2 2. 11 3. (i) 1 , (ii) 1 , (iii) 1 4. 2 5. 5 3
,
3 20 2 3 6 3 8 8
6. VI-B 7. Siddhie 8. 1
6