Question

the length and the breadth of a conference hall are in the ratio 7:4 and its perimeter is 110m.find its lengts and breadth

Answer 1

let multiple of their lenght and breadth be x
perimeter of rectangle=2(l+b)
110m=2(7x+4x)
110=22x
x=5
please mark it as brainliest

Answer 2

Answer:

length = 45

breadth= 20

Step-by-step explanation:

let the length = 7x

    the breadh = 4x

perimeter = 2 x (Length + breadth)

       110   =    2 x ( 7x +4x)

       110   =    2  x  11x

       110   =    22x

110 ÷ 22 = x

∴x = 5

length = 7x = 7 x 5 = 45

breadth= 4x =4 x 5 = 20