Question

The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?; A.; 16 cm; B.; 18 cm; C.; 24 cm; D.; Data inadequate; E.; None of these

Answer 1

Answer:

Step-by-step explanation:

Let perimeter be 5x and breadth be x.

2(l+b)=5x

2(l+x)=5x

l+x=5x/2

l=3x/2.

Now area=216cm²

l*b=216cm²

3x/2*x=216

3x²=216*2

x²=72*2

x²=144

x=12cm therefore length=3*12/2

=18cm

Correct answer=B

Answer 2

Answer:

b)18 cm is your answer

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