Question

give reasons for your answer

Answer 1

Answer:

option (a) will be correct

a. 61

Answer 2

For 64 , 8 x 8 = 64 and on reversing the digits we get 46.

So this table will explain the rule -

9 x 9 = 81 -> 18

8 x 8 = 64 -> 46

7 x 7 = 49 -> 94

6 x 6 36 -> 63

5 x 5 = 25 -> 52

4 x 4 = 16 -> 61

$\: \: \: \:$

61 is replace by the number