**Number Series:**

1. 4, 19, 49, 94, 154, ?

**Answer : 229**

**Explanation:**

4 + 15 = 19

19 + 30 = 49

49 + 45 = 94

94 + 60 = 154

154 + 75 = 229

2. ½, 1, 1 ½, 2, 2 ½, 3, ?

**Answer : 3 ½**

**Explanation:**

½ + ½ = 1

1 + ½ = 1 ½

1 ½ + ½ = 2

2 + ½ = 2 ½

2 ½ + ½ = 3

3 + ½ = 3 ½

3. 101, 103, 99, 105, 97, ?, 95

**Answer : 107**

**Explanation:**

101 – 2 = 99

103 + 2 = 5

99 – 2 = 97

105 + 2 = 107

97 – 2 = 95

4. 3, 219, 344, 408, ?, 443, 444

**Answer : 435**

**Explanation:**

3 + (6)3 = 219

219 + (5)3 = 344

344 + (4)3 = 408

408 + (3)3 = 435

435 + (2)3 = 443

443 + (1)3 = 444

5. 7, 10, 16, 28, 52, ?, 196

**Answer : 100**

**Explanation:**

7 + 3 = 10

10 + 6 = 16

16 + 12 = 28

28 + 24 = 52

52 + 48 = 100

100 + 96 = 196

6. 353, 354, 351, 356, 349, ?

**Answer : 358**

**Explanation:**

353 – 2 = 351

354 + 2 = 356

351 – 2 = 349

356 + 2 = 358

7. 1, 5, 13, 29, ?, 125, 253

**Answer : 61**

**Explanation:**

1 + 4 = 5

5 + 8 = 13

13 + 16 = 29

29 + 32 = 61

61 + 64 = 125

125 + 128 = 253

8. 45, 57, 81, 117,165, ?

**Answer : 225**

**Explanation:**

45 + 12 = 57

57 + 24 = 81

81 + 36 = 117

117 + 48 = 165

165 + 60 = 225

9. 17, 18, 26, 53, 117, ?, 458

**Answer : 242**

**Explanation:**

17 + (1)3 = 18

18 + (2)3 = 26

26 + (3)3 = 53

53 + (4)3 = 117

117 + (5)3 = 242

242 + (6)3 = 458

10. 20, 19, 17, ? , 10, 5

**Answer: 14**

**Explanation:**

20 – 1 = 19

19 – 2 = 17

17 – 3 = 14