SSC Steno Grade C and D 11 Sep 2017 Shift 2 Paper

Question : 2 of 200

Marks: +1, -0

In the following question, select the missing number from the given alternatives : 1, 9, 25, ?, 361, 841, 1681

Solution:

(4)

(1)^2

= 1

(3)2

= 9

(5)^2

= 25

(11)^2

= 121

(19)^2

= 361

(29)^2

= 841

(41)^2

= 1681
Now,
1 + 2 = 3
3 + 2 = 5
5 + 6 = 11

11 + 8 = 19
19 + 10 = 29
29 + 12 = 41

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