Floor function equation
Algebra
Level
2
\[ \big\lfloor 5 - \lfloor x \rfloor \big\rfloor = 15 \]
If all the values of \(x\) that satisfy the equation above are in the interval \(a \le x < b\), find the product \(ab\).
\(\)
Note: \( \lfloor x \rfloor \) is the floor function, or the greatest integer function.
by
Anthony Muleta