Question

if a lenght of rectangle is 7/5 of its breath and perimeter is 48 than find the length of rectangle

Answer 1

let the breadth be x
so the length will be 7/5x

48=2(x+7/5x)
48/2=12/5x
24×5/12=x
10=x

length=7/5×10=14
breadth=10

Answer 2

Let breadth be 'x'
Then length will be (7/5)x

According to question
2{(7/5)x + x}=48

12x/5=24
12x=120
x=10

Therefore,breadth=10
length=14