Question

1. The sides of a rectangle are in the ratio 7 : 5 and its perimeter is 96 cm. The length of the
rectangle is
(a) 21 cm
(b) 28 cm
(c) 35 cm
(d) 14 cm​

Answer 1

Answer:

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Answer 2

Answer:

28,20 cm

Step-by-step explanation:

Given:-

Length and breadth in the ratio = 7:5

Perimeter = 96 cm

Solution:-

Let the number be X

Than length : breadth = 7x:5x

$perimeter \: of \: rectangle = 2(l + b) \\ 96 = 2(7x + 5x) \\ 96 = 2(12x) \\ 96 = 24x \\ x = \frac{96}{24} = 4 \\ thus \: length \: = 7x = 7 \times 4 = 28cm \\ breadt = 5x = 5 \times 4 = 20cm$