Question

the perimeter of the rectangular field is 58 metres and the breadth of the field if the length is 48 upon 3 metre​

Answer 1

$perimeter = 58m \\ length = \frac{48}{3} = 16m \\ 2(l + b) = 58 \\ 2(16 + b) = 58 \\ 16 + b = \frac{58}{2} \\ b = 29 - 16 = 13m$