The product of two consecutive odd numbers is 143. Which of the following is the larger of the two numbers?
Show answer & explanation
Correct answer: C
Explanation
The product of two consecutive odd numbers = 143
Consecutive odd numbers = x, x + 2
x(x + 2) = 143
x² + 2x − 143 = 0
143 = 11 × 13
Therefore, the numbers = 11 and 13
The larger number = 13