Page 275 - MathGPT_V1.0_C5

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\\November 3, 2023 1:02 PM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

4. (a) T (b) F (c) F (d) T (e) 64 (f) 90
Practice Time 3A 2 × 32 2 × 45
1. (a) 1 (b) number itself (c) 1 (d) 0 (e) 2 2 × 16 3 × 15
(f) less, equal (g) 1, 2, 3, 6 2 × 8 3 × 5
2. (a) 1, 3, 9 (b) 1, 2, 4, 8, 16 (c) 1, 2, 4, 7, 14, 28 2 × 4
(d) 1, 2, 4, 8, 16, 32 (e) 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 2 × 2
(f) 1, 3, 5, 9, 15, 45 (g) 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 (g) 78 (h) 120
(h) 1, 3, 9, 27, 81 (i) 1, 2, 4, 5, 10, 20, 25, 50, 100
(j) 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144 2 × 39 2 × 60
3. No 3 × 13 2 × 30
4. (a) No (b) No (c) No (d) Yes 2 × 15
Practice Time 3B 3 × 5
1. (a) 7 (b) even (c) 1, itself (d) 0 (e) 9 4. (a) 3 × 3 × 3 (b) 2 × 2 × 2 × 2 × 3 (c) 2 × 3 × 3 × 3
2. (a) 11, 22, 33, 44, 55 (b) 13, 26, 39, 52, 65 (d) 3 × 3 × 7 (e) 2 × 3 × 13 (f) 7 × 13 (g) 5 × 13
(c) 18, 36, 54, 72, 90 (d) 24, 48, 72, 96, 120 (h) 2 × 2 × 2 × 2 × 2 × 3 (i) 2 × 2 × 2 (j) 2 × 2 × 2 × 2 × 7
(e) 75, 150, 225, 300, 375 (k) 5 × 5 × 5 (l) 2 × 2 × 2 × 2 × 3 × 3
3. (a) 384 (b) 500 (c) 1152 (d) 18, 36, 54, 72, 90 Practice Time 3E
(e) 11, 33, 55, 77, 99 1.
4. (a) 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132, 143, 154, 165, 176, 2. (a) 1, 2, 3, 6 (b) 1, 3 (c) 1, 2, 4, 8 (d) 1, 2, 3, 6
187, 198 (a) 5 (b) 6 (c) 11 (d) 7 (e) 2 (f) 10
(b) 125, 150, 175, 200 (c) 152 (d) 15, 30, 45, 60, 75, 90 (g) 2 (h) 8 (i) 15 (j) 14 (k) 25 (l) 7
5. (a) No (b) No (c) No (d) Yes 3. (a) 3 (b) 18 (c) 8 (d) 14 (e) 5 (f) 8
(g) 12 (h) 11 (i) 4 (j) 11 (k) 5 (l) 24
Practice Time 3C 4. (a) 21 (b) 7 (c) 4 (d) 18 (e) 2 (f) 5
1. Divisible by (g) 4 (h) 5
Number
2 3 4 5 6 9 10 5. 40 6. 8 cm 7. 4 litres
1359 7 3 7 7 7 3 7 Practice Time 3F
1605 7 3 7 3 7 7 7 1. (a) 60 , 120, 180 (b) 48 , 96, 144 (c) 42 , 84, 126
3420 3 3 3 3 3 3 3 (d) 90 , 180, 270 (e) 30 , 60, 90
6543 7 3 7 7 7 3 7 2. (a) 84 (b) 144 (c) 110 (d) 1260 (e) 72 (f) 114
5004 3 3 3 7 3 3 7 (g) 180 (h) 300 (i) 160 (j) 66 (k) 120 (l) 96
3. (a) 238 (b) 918 (c) 3198 (d) 75 (e) 270 (f) 72
7625 7 7 7 3 7 7 7
(g) 1440 (h) 240 (i) 504 (j) 60 (k) 495 (l) 72
4790 3 7 7 3 7 7 3 4. (a) 96 (b) 504 (c) 180 (d) 144 (e) 234 (f) 54
5423 7 7 7 7 7 7 7 (g) 800 (h) 490
9963 7 3 7 7 7 3 7 5. (a) 10:52 p.m. (b) 11:13 p.m.
6739 7 7 7 7 7 7 7 6. 24 7. 9:27 a.m.
8400 3 3 3 3 3 7 3 Practice Time 3G
2. (a) No (b) Yes (c) No 1. HCF LCM Product of two numbers
(a) 12 27 324
Practice Time 3D
(b) 4 252 1008
1. (a) False (b) False (c) True (d) True (e) False (f) False (c) 12 72 864
2. (a) 97 (b) 2 (c) 25 (d) 2 × 2 × 2 × 2 × 2 (e) 9
3. (a) 18 (b) 28 (d) 50 300 15000
2 × 9 2 × 14 2. 25 3. 25 4. 30 5. 15
Mental Maths
3 × 3 2 × 7
(c) 32 (d) 40 1. (a) 2. (b) 3. (a) 4. (b) 5. (b)
2 × 16 2 × 20 Chapter Assessment
2 × 8 2 × 10 1. (a)-(iv) (b)-(ii) (c)-(iv) 2. 18 3. 9
4. 527253 → 572253 5. 600 cm 6. 10 cm 7. 2100 cm or 21 m
2 × 4 2 × 5
8. `6 9. 12:04 p.m.
2 × 2
10. 16 teams, each team has 3 girls and 2 boys 11. 132
Brain Sizzlers
1. 131
2. 24, 15 + 19 = 34 piles

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