Question

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: If \: \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 1 + 2 = 21 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 2 + 3 = 36 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3 + 4 = 43 \\ \: Then \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: 4 + 5 =$
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Answer 1

the answer will be 59
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Answer 2

$\huge\mathfrak\blue{Answer:-}$

Given:

1 + 2 = 21

2 + 3 = 36

3 + 4 = 43

To Find:

4 + 5 = ?

Solution:

1 + 2 = 12 + 9 = 21

2 + 3 = 23 + 13

3 + 4 = 34 + 9

4 + 5 = 45 + 13

Here, a + b = ab/13

Therefore 4 + 5 = 58