SSC CGL 1 september, 2016 Shift 1 Question 9(Reasoning) with Solution.

Find the missing term in the following series:
43, 172, 86, 344, ?
Options:
1. 172
2. 258
3. 129
4. 430
Answer: 172

43 x 4 = 172
172 / 2 = 86
86 x 4 = 344
344 / 2 = 172

i.e. series logic is multiply by four and for next term divide by 2.