Q1-2. Directions: What value should come in place of (?) in the following number series?

1. 56.  28, 29, 60, 183, 736, ? 

      A. 2890

      B. 3685

      C. 3145

      D. 2960 

2. 19, 33, 62, 121, ?, 479

      A. 240 

      B. 220 

      C. 200 

      D. 180

EXPLANATION

1. Answer: B

 28 * 1 + 1 = 29 29 * 2 + 2 = 60 60 * 3 + 3 = 183 183 * 4 + 4 = 736 736 * 5 + 5 = 3685

 2. Answer: A 

19 * 2 – 5 = 33 33 * 2 – 4 = 62 62 * 2 – 3 = 121 121 * 2 – 2 = 240 240 * 2 – 1 = 479

Q2-3. Direction: Find out the missing number in the following number series.

2. 42. 483, 500, 581, 711, 877, ? 

1. 952
2. 1124 
3. 996 
4. 1068

EXPLANATION

Answer: D

3. 18, 21, 48, 153, 624,?

1. 2820
2. 2675 
3. 3135 
4. 3350 

EXPLANATION

Answer: C

18 * 1 + 3 = 21

21 * 2 + 6 = 48

48 * 3 + 9 = 153

153 * 4 + 12 = 624

624 * 5 + 15 = 3135

4. 19, 38, 67, 106, 155, ?

1. 208
2. 210
3. 214
4. 220

5.  35, 46, 59, 76, 99, ?

1. 130
2. 136
3. 142
4. 145

EXPLANATION

4. Answer: C

19 + 19 = 38

38 + 29 = 67

67 + 39 = 106

106 + 49 = 155

155 + 59 = 214

5. Answer: A

35     46     59      76    99    130

11     13      17     23      31

2       4       6       8