Question

The perimeter of a rectangle is 30 m and the ratio between length and breadth is 7: 3. Find the area of the rectangle.
(a)189m2
(b)189/4 m2
(c)200m2
(d)300m2​

Answer 1

Answer:

Option (b) 189/4 m2

Step-by-step explanation:

Given length breadth ratio is 7:3

So, let us take the values of l and b as 7x and 3x respectively.

Now,

Perimeter of rectangle = 30m

2 (l + b) = 30

l + b = 15

7x + 3x= 15

10x= 15

x = 15/10=3/2

length = 7x = 7 × 3/2 = 21/2 m

breadth=3x = 3 × 3/2 = 9/2 m

Area = l × b

= 21/2 × 9/2

= 189/4 m^2

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Answer 2

Answer:

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