The ratio of apples to oranges in a basket is 5:3. If 6 apples are added, the ratio becomes 7:3. How many oranges are in the basket?

✓ Correct Answer: Option C

Let the number of apples be 5x and oranges be 3x. After adding 6 apples, the new ratio is (5x+6)/3x = 7/3. Cross-multiplying gives 3(5x+6) = 7(3x), so 15x+18 = 21x. This means 6x = 18, so x = 3. The number of oranges is 3x = 3 * 3 = 9.