There are many mock answers to this question, but a logical answer has not yet been found.
1hr+5hr+1day=30hrProof that this question is not mathematically solvable unless it is a riddle
Take any number, say "x". In the expression
, y could be either odd or even. To make it even, we change the expression to
.Here, y is an even number since and every even number is a multiple of 2 and every multiple of 2 is an even number.
Even here, only y is an even number. "x" could might as well be an odd number. But even if so, a perfect double or a multiple of 2 is always an even number
Then, if the expression
is an even number indeed, then the expression
will be odd since every even number is succeeded and preceded by an odd number. Since 30-1 or 30+1 are not even,
will never be 30.