Question

the length of a rectangle is four times it's breath if it's perimeter is 150 cm find the length and breath​

Answer 1

Step-by-step explanation:

length=4x

b=x

perimeter= 2(l+b)

2(4x+x)=150

2*5x=150

therefore,x=15

length= 4x= 60

breath= x =15

Answer 2

Answer:

length= 60cm. breath = 15cm

Explanation:

perimeter= 2(l+b)

let length be 4b instead of l

perimeter = 2(4b+b)

150= 2(5b)

150÷2 = 5b

75= 5b

75÷5 =b

15= b

breath is 15 and length is 4 times length=

length= 4×15

length = 60

length= 60cm. breath = 15cm