Question

23+23=7, 13+12=4, 41+21=9, 21+61=?​

Answer 1

Given :

23+23=7

13+12=4

41+21=9

To Find : 21+61=??

Solution:

23+23=7

2 * 2  +  3  = 7

13+12=4

1* 1 + 3  = 4

41+21=9

4 * 2 + 1 = 9

ab + cd  = e

=> a * c  + b = e

21 + 61 = ??

2 * 6 + 1  = 13

Hence 21 + 61 = 13

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Answer 2

Answer:

23 + 23 = (2*2) + (3*3) = 49 = Sqrt(49)= 7

13 + 12 = ( 1 * 1) + ( 3 *2) = 16 = Sqrt(16) = 4

41 + 21 = ( 4 * 2) + ( 1*1) = 81 = Sqrt(81) = 9

21 + 61 = (2 *6} + (1 *1) = 121 = Sqrt(121) = 11