Page 223 - Maths Class 06

5. 2. (a) 169 cm (b) 625 cm 2
2
2
Size of shirts Tally Marks Frequency (c) 110.25 m (d) 20.25 m 2
3. (a) 33.33 sq.m (b) 32.775 sq.m
32 ||| 3
(c) 52.8125 sq.m; Area of rectangle
34 ||| 3 4. Area becomes 4 times 5. ` 16,200
36 || 2 6. ` 4,040 ; ` 11,706.66 7. 26 sq.m
2
8. 506.25 m 9. 1500
38 |||| 4
10. 16 m, perimeter of rectangle = 104 m,
40 |||| |||| || 12
perimeter of square = 96 m
42 ||| 3 11. 22.14 m , ` 7195.5 12. ` 60,000
2
44 ||| 3 13. width = 18 m, perimeter =136 m
14. ` 10,800
(a) size 36 had min. sale 2 2
15. (a) 22 m (b) 64 cm
(b) size 40 had max. sale 2 2
(c) 52 cm (d) 125 cm
6. (a) 200 (b) Wednesday (c) Friday
(d) 300 (e) Tuesday, Thursday MCQs
7. Do it yourself 8. Do it yourself 1. (c), 2. (a), 3. (c), 4. (c), 5. (b), 6. (b), 7. (d), 8. (d).

EXERCISE 9.2 EXERCISE 11.1
1. Do it yourself 1. (a) 1, 4, 7, 10, … (b) Adding 3
2. Do it yourself
(c) 3n - 2
3. Do it yourself
1
2. (a) 31 (b) 106 (c) 5n +
4. (a) Bar graph shows the total production of wheat (in 3. 11, 13, 23, 2n + 1
tonnes) in 6 different states
(b) M.P (c) W.B (d) 13000 tonnes 4. No. of match sticks—16, 28, 60, 4n;
No. of dots -13, 22, 46, 3n + 1
5. (a) The bar graph shows the number of books issued
by a library during a week. 5. (a) 88 (b) 698 (c) 89
(b) 40 (c) 50 (d) 45 (e) 220 6. (a) 2n (b) 4n (c) 2n (d) 3n
6. (a) 68 matches (b) 12 matches (c) 12 matches
EXERCISE 11.2
7. (a) 2,20,000 (b) Tamil (c) Hindi
1. (c), (d) and (e)
MCQs 2. (a) x -10 (b) 2y + 11 (c) x - y
1. (a), 2. (b), 3. (c), 4. (c), 5. (b), 6. (b), 7. (a), 8. (c). (d) x + y + z (e) xy + x + y
4
EXERCISE 10.1
3. (a) 7 more than a number x
1. (a) 50 cm (b) 160 cm (c) 39 cm (d) 18 cm (b) y subtracted from 2 times of x
(e) 61 cm (f) 80 cm (g) 26 cm (h) 24 cm (c) 3 times the product of a and b
(i) 34 cm (j) 65 cm (k) 46 cm (l) 46 cm (d) x divided by y
2. (a) 210 cm (b) 104 cm (c) 530 m (d) 32 m 4. (a) 5x + (b) 6n - 5
3
3. (a) 60 m (b) 96 cm (c) 780 cm (d) 5 m 5. (k + 5 years 6. (k m- ) years
)
4. (a) 13 cm (b) 34 cm (c) 78 cm (d) 60 cm 7. x + x + x, 3x 8. 10m + n
5. 200 cm 6. ` 8000 7. ` 750 9. (a) 8, 7, 5, 4, 1 (b) 2, 0, 11, 1, 8
8. L = 40 m, B = 10 m 9. Lalit
400 200 EXERCISE 11.3
10. 210 m 11. L = m, B = m
3 3 1. (a) -12 (b) -10 (c) 111
12. Roma walks 60 m more than Mayank (d) 2 (e) 4 (f) 1
13. 6000 m 14. 11 km, ` 99000 2. 4 3. 0 4. 69

EXERCISE 10.2 EXERCISE 11.4
1. (a) 5x = 40 (b) 4x - 3 = 17
Do it yourself
(c) 25 - x = 1 (d) x + 8 = 15
EXERCISE 10.3 (e) 3x - 5 = 16 (f) x - 5 = 3
2
1. (a) 96 cm (b) 112 cm 2 (g) x -12 = 24 (h) 19 2- x = 11
2
(c) 400 cm (d) 113.4 m 2
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