The product of two consecutive odd numbers is 63. What is the larger number?

A7

B9

C11

D13

Explanation

Let numbers be x and x+2. x(x+2) = 63 => x^2 + 2x – 63 = 0 => (x+9)(x-7) = 0. Positive integer x = 7. Larger number = 9.

Exam Relevance

Topic: Basic Algebra & Equations
Subtopic: Word Problems

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