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The length of a rectangle is three times the number obtained by subtracting 2 from its breadth. If the breadth is 8, what is the area of the rectangle?
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Answer and explanation
Correct answer: 144
The breadth is 8, so the length is \(3(8-2)=3\times6=18\). Therefore, the area is length \(\times\) breadth = \(18\times8=144\) square units. Exam tip: “three times the number obtained by subtracting 2” means \(3(8-2)\), not \(3\times8-2\).
Frequently asked questions
What is the correct answer to this question?
144
Why is this the correct answer?
The breadth is 8, so the length is \(3(8-2)=3\times6=18\). Therefore, the area is length \(\times\) breadth = \(18\times8=144\) square units. Exam tip: “three times the number obtained by subtracting 2” means \(3(8-2)\), not \(3\times8-2\).
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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