Page 223 - Start Up Mathematics_4

2. (a), (d), (e) and (f) Chapter 14: Data Handling

Let’s Recall
3. (a) (b)
(a) Pictograph
Type of books Number of children
(c) (d)
Adventure

Horror
(e) (f)
Comics

Exercise 13.7 Fairy tales
1. (a) 3, 5, 8, 12, 17, 23, 30, 38, 47
(b) 1, 1, 2, 6, 24, 120, 720, 5,040, 40,320 Scientific
(c) 10, 20, 35, 55, 80, 110, 145, 185, 230 Others
2. (a) (iii) (b) (i)
3. (a) (i) 16 22 22 11 2 12 6 9 24 18 7 2 = 2 children = 1 child
24 15 22 26 13 (b) Tally marks
(ii) 9 22 8 11 22 24 7 2 12 6 9
22 15 23 22 9 8 Type of books Number of children
(b) (i) I love my country Adventure | | | | | | | |
(ii) Save water and electricity
(iii) Happy Diwali Horror | | | |
4. (a) 123454321, 12345654321, 1234567654321 Comics | | | | | | | | | |
(b) 60 + 60 = 120, 120 + 120 = 240, 240 + 240 = 480 Fairy tales | | |
5. 17,805
Scientific | | | |
Let’s Evaluate
Others | | | | | | |
1. (a) F (b) T (c) F (d) T (e) F
2. (a), (c) and (d) 42
3. 14 cm (i) 42 (ii) Comics
4. cuboid (iii) Adventure = 10, Scientific = 4 (iv) 30
5. Students to do on their own.
(v) Horror = 5, Comics = 12, Fairy tales = 3
6. Exercise 14.1
front side top
1. (a) 7 (b) Monday, 10 (c) Wednesday (d) 37 (e) 2
7. (a) 22 cm (b) 20 cm 2. Tally marks

8. (a) 5 5 (b) (c) Ice cream flavour Tally marks Number
Strawberry | | | | | | 7
9. The quick brown fox jumps over the lazy dog. Vanilla | | | | 5
10. 18,024
Chocolate | | | | | | | | | | | | | 16
Scratch Your Brain
Butterscotch | | | | | | | | | | | | 14
1. F, G, J, L, N, P, Q, R, S, Z
Kesar pista | | | | 4
2. 10 14 Mango | | | | | | | | 9

Total 55
Note: Answers can vary.

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