Question

the sides of a rectangle are in ratio 7:5 and its perimetre is 96cm find the lenght of the rectangle

Answer 1

let the ratio be x
perimeter of rectangle=2(length×breadth)
→ 96 =2(7x+5x)
→ 96 =2(12x)
→ 96 =24x
→. x =96/24
→ x=4

length= 7x=7×4=28.