All 4 Operarions
The addition, subtraction, multiplication and division between two numbers, X and Y, can be represented by positive integers from 1 to 16, both inclusive, but each positive integer can only be used once.
However, you don't know what X and Y are.
Here is an example, 1 and 10, to help you understand better.
Addition: 11
Subtraction: 9, -9
Multiplication: 10
Division: 10, 0.1
Notice that 10 is repeated twice in this example, so this is not accepted. The numbers between the stars show alternate but incorrect solutions that are avoided.
Which of the positive integers is 1 of the 4 that is being used?
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0 solutions
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