"-" is not always subtraction
Number Theory
Level
3
If 55 - 60 = 25 ;
26 - 13 = 15 ;
46 - 32 = 30 ;
Then what is the value of 28 - 78
The answer is 72.
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1 solution
First equation :-
5 * 5 = 25
6 * 0 = 0
Therefore, 25 + 0 = 25
Similarly, this rule holds good for all other equations.
Therefore, 2 * 8 = 16
7 * 8 = 56
So
16 + 56 = 72
Therefore answer is 72