Question

Kellogg's produced 715000 boxes of cornflakes this year. This was 110% of annual production last year. What was last year's annual production?

Answer 1

Let last year product be x boxes.

110% of x means $\displaystyle{ \frac{110}{100}\cdot x$.

Thus, we solve the equation:

                                  $\displaystyle{ \frac{110}{100}\cdot x=715,000$.

Multiplying both sides by  $\displaystyle{ \frac{100}{110}$, we have:

                    $\displaystyle{ x=715,000 \cdot \frac{100}{110}=650,000$.


Answer: Last year's annual production was 650,000 boxes.