MCQ
Choose the correct alternative answers for the following questions.
'When 5 is subtracted from length and breadth of the rectangle, the perimeter becomes 26.' What is the mathematical form of the statement ?
Options
x - y = 8
x + y = 8
x + y = 23
2x + y = 21
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Solution
Let the length be x and the breadth be y.
Perimeter of the rectangle = 2(l + b) = 26
2(l + b) = 26
⇒ 2[( x - 5) + (y - 5)] = 26
⇒ 2 [ x + y - 10] = 26
⇒ x + y = 23
Hence, the correct answer is option (C).
Concept: General Form of Linear Equation in Two Variables
Is there an error in this question or solution?
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