A square lawn has side 20 m

MATHEMATICS · Single correct · CBSE · Mathematics · Quadratic Equations · Quadratic Equations

Problem

A square lawn has side 20 m. It is proposed to add a uniform gravel path of width

x

m all around the lawn so that the total area becomes 576 m². What is the value of

x

? (a)

3\,\text{m}

(b)

2\,\text{m}

(c)

4\,\text{m}

(d)

5.6\,\text{m}