SSC CGL 23 AUGUST 2017 REASONING QUESTION 9 SHIFT 3

9.A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
-7.25, -5.75, -4.25, -2.75, ? , 0.25
Options:
1. 1.25
2. -1.25
3. 1.5
4. -1.5
Answer:2
 Add -1.50 to next term

 -2.75, -4.25(-2.75 - 1.50), -5.75(-4.25 -1.50), -7.25(-5.75 - 1.50)
 So, missing term will be 0.25 - 1.50 = -1.25