1. The problem states the ratio of apples to oranges is 3 : 5. 2. We represent the number of apples as $3x$ and the number of oranges as $5x$, where $x$ is a positive number representing the common multiplier. 3. This means for every 3 apples, there are 5 oranges. 4. The total number of fruits can be expressed as $3x + 5x = 8x$. 5. This ratio helps us understand the relative quantities of apples and oranges in any given total amount. 6. For example, if $x=2$, then apples = $3 \times 2 = 6$ and oranges = $5 \times 2 = 10$. 7. Thus, the ratio 3 : 5 is maintained regardless of the value of $x$. Final answer: Apples = $3x$, Oranges = $5x$ maintaining the ratio 3 : 5.