![](https://4.bp.blogspot.com/-IlYoYDufWIA/WAr7RLJ9uLI/AAAAAAAAGDc/JwjlZ0U-BnIOwm4FyfO7WFcfUKxbSgQaACLcB/s400-rw/series1.jpg)
a) 142
b) 403
c) 124
d) 96
e) 124
2. 23 39 32 48 41 ?
a) 58
b) 57
c) 59
d) 48
e) 84
3. 11 13 20 48 111 ?
a) 237
b) 125
c) 273
d) 255
e) 555
4. 13 17 33 97 ? 1377
a) 259
b) 563
c) 535
d) 455
e) 353
5. 6 3.5 4.5 11 48 ?
a) 96
b) 56
c) 392
d) 192
e) 292
Answers:
1. a) 142
Solution:
![](https://1.bp.blogspot.com/-z3lgv-kY88E/WAr6P-3CBxI/AAAAAAAAGDQ/ttwQJ5DAFcI-6deoCcpnFMdDPSBtjVhWwCLcB/s400-rw/1.jpg)
2. b) 57
Solution:
![](https://3.bp.blogspot.com/-iUE4c-u8ZWI/WAr6i85CilI/AAAAAAAAGDU/lpMtn0WoMoMmM83JFQUedXvm-fzY-qIjACLcB/s400-rw/2.jpg)
3. a) 237
Solution:
11 + (13 + 1) = 11 + 3 = 13
13 + (23 - 1) = 13 + 7 = 20
20 + (33 + 1) = 20 + 28 = 48
48 + (43 - 1) = 48 + 63 = 111
111 + (53 + 1) = 111 + 126 = 237
4. e) 353
Solution:
![](https://2.bp.blogspot.com/-LOG02UtT_6c/WAr6-RhOWSI/AAAAAAAAGDY/I3XHU2BVQsMeWqBRoE3JBQYcjRuT_3cOACLcB/s400-rw/4.jpg)
5. c) 392
Solution:
6 x 0.5 + 0.5 = 3.5
3.5 x 1 + 1 = 4.5
4.5 x 2 + 2 = 11
11 x 4 + 4 = 48
48 x 8 + 8 = 392
Thanks.