The product of two consecutive odd numbers is 255. Which of the following is the larger of the two numbers?
Show answer & explanation
Correct answer: A
Explanation
The product of two consecutive odd numbers = 255
Consecutive odd numbers = x, x + 2
x(x + 2) = 255
x² + 2x − 255 = 0
255 = 15 × 17
Therefore, the numbers are 15 and 17.
The larger number = 17