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Class 10MathematicsQuadratic EquationsWord Problems and ApplicationsExpertLevel 41
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The sum of two positive numbers is (21), and their product is (108). What is the larger number?

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Answer and explanation

Correct answer: (12)

Let the numbers be (x) and (21-x), then (x(21-x)=108). The roots are (9) and (12), so the larger number is (12).

Related tags

Quadratic EquationsSum ProductNumber Problem

Frequently asked questions

What is the correct answer to this question?

(12)

Why is this the correct answer?

Let the numbers be (x) and (21-x), then (x(21-x)=108). The roots are (9) and (12), so the larger number is (12).

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Word Problems and Applications.

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