Question

12:122::13:?
Options are
a) 145 b) 142 c) 139 d) 135

Answer 1

I think 139..............

Answer 2

Answer:

Step-by-step explanation:145

The no. Before 12 is 11.

Square of 11 is 121. 121+1=122

Same way no. Before 13 is 12.

Square of 12 is 144. 144+1=145.