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The length of a rectangular sheet is 6 cm more than its breadth, and its area is 667 square cm. What is the breadth of the sheet?

Answer and explanation

Correct answer: 23 cm

Let the breadth be \(x\) cm. Then the length is \(x+6\) cm, so \(x(x+6)=667\), giving \(x^2+6x-667=0\). Factoring, \((x-23)(x+29)=0\), gives \(x=23\) or \(x=-29\). A length or breadth cannot be negative, so the breadth is 23 cm. Option D is the length, not the breadth. Exam tip: verify the answer by multiplying the breadth and the corresponding length to check the given area.

Related tags

Quadratic EquationsRectanglesWord ProblemsArea ApplicationsWord Problems And ApplicationsMathematicsClass 10 Mcq

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