We can start solving the problem by setting up an equation based on the information given.
The problem states that "x% of 240 equals 12". In other words, we can translate this into an equation:
x/100 * 240 = 12
To solve for x, we can isolate it by dividing both sides of the equation by 240/100, which simplifies to 2.4:
x/100 * 240 = 12
x = 12 / 2.4
x = 5
Therefore, the value of x that satisfies the given equation is 5.