Question

if 1+2=21,2+3=36,3+4=43 then 4+5=9 how
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Answer 1

Answer:

reasoning is the method by which you make this

Answer 2

The value of  "4 + 5 = 58".

Step-by-step explanation:

We have,

1 + 2 = 21, 2 + 3 =36, 3 + 4 = 43

To find, the value of  4 + 5 = ?

The pattern follow,

(Reversing numbers), (Reversing numbers) + 4, (Reversing numbers), (Reversing numbers) + 4, ....

1 + 2 = Reversing numbers = 21

2 + 3 = Reversing numbers + 4 = 32 + 4 = 36

3 + 4 = Reversing numbers = 43

Similarly,

? = 4 + 5 = Reversing numbers + 4 = 54 + 4 = 58

Hence, the value of  "4 + 5 = 58".