The width of a rectangle is 2 m less than its length. If the perimeter of the rectangle is 68 m, then what is the length (in metres) of the rectangle?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 18.
Let, the length of rectangle be L meter
The width of the rectangle (b)= (L - 2) meter
Formula usede
The perimeter of a rectangle = 2 (l + b)
Where, l is the length and b is the width of the rectangle
Calculation
⇒ 2(l + b) = 68
⇒ L + L - 2 = 34
⇒ 2L = 36
⇒ L = 36/2 = 18 m
⇒ B = L - 2 = 18 - 2 = 16 m