Question

if the ratio of length to the breadth of rectangle 5:3and its perimeter is 144 m find the length of rectangle​

Answer 1

Step-by-step explanation:

Let length and breadth be l and b

Given that bl=35l=35b

Perimeter =2(l+b)=144

l+b=7235b+b=7238b=72b=9×3=27l=35×27=5×9=45

∴ length l=45m

Answer 2

Step-by-step explanation:

let length and breadth be 5x and 3x

perimeter=2(l+b)

now,

2(5x+3x)=144

5x+3x=72

8x=72

x=9

length =5×9=45 m

it may help uu..

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