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Class 10MathematicsQuadratic EquationsWord Problems and ApplicationsExpertLevel 40
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A wire is bent into a rectangle. The length is (30) cm more than the breadth and area is (2800) square cm. What is the length of the wire?

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Answer and explanation

Correct answer: (220) cm

If breadth is (x), then (x(x+30)=2800), giving (x=40) and length (70). The wire length is (2(40+70)=220) cm.

Related tags

Quadratic EquationsRectangleWire

Frequently asked questions

What is the correct answer to this question?

(220) cm

Why is this the correct answer?

If breadth is (x), then (x(x+30)=2800), giving (x=40) and length (70). The wire length is (2(40+70)=220) cm.

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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