Question

the perimeter of a rectangular parking lot is 150 the parking lot is 30 metre wide how long is it​

Answer 1

let the length be = x

perimeter = 2×( l+b)

150 = 2×(x+30)

150/2 = x+ 30

75 = x+30

75-30 = x

45=x

therefore , x = 45

hence the length is 45