SSC CGL 4 september, 2016 Shift 3 Question 1(Reasoning) with Solution.

Select the related word/ letters/ number from the given alternatives.
9 : 25 :: 49 : ?

Options:
1. 36
2. 54
3. 64
4. 81
Answer: 4 (81)

 Sq 3 : Sq 5 :: Sq 7 : Sq 9(81).