91+1=91,8+2=75,7+3=61,6+4=49,5+5=39,3+7=
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Given:
9+1=91
8+2=75
7+3=61
6+4=49
5+5=39
To Find :
3+7=?
Solution:
The logic behind the coding is as follows:
How 9+1 = 91
9² +(1+9)
=> 81 + 10 = 91
How 8+2=75
8² +(2+9)
=> 64 + 11 = 75
How 7+3=61
7² +(3+9)
=> 49 + 12 = 61
How 6+4=49
6² +(4+9)
=> 36 + 13 = 49
How 5+5=39
5² +(5+9)
=> 25 + 14 = 39
In the same way, 3+7=?
3² +(7+9)
=> 9 + 16 = 25
Hence, 3 + 7 = 25
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