Question

1. The sides of a rectangle are in the ratio 8 : 7 and its perimeter is 90 cm. The length of
the rectangle is
(a) 21 cm
(b) 24 cm
(c) 32 cm
(d) 28 cm​

Answer 1

$\tt\huge{\orange{Answer:-}}$

Let the sides be 8x and 7x

According to question,

Perimeter of rectangle =2(l+b)

90=2(8x+7x)

90=30x

x=90/30

x=3cm

now, 8x=8×3=24cm

7x=7×3=21cm