Question

The ratio of sides of rectangle is $4:3$ if its perimeter is $350$ find Its area.

Answer 1

The ratio of sides is $4:3$

Let $x$ be common factor

So the sides are $4x,3x$

The perimeter of rectangle is $2(l+b)=3504x+3x=1757x=175x=25$

The sides are $4x=4\left(25\right)=1003x=3\left(25\right)=75$

Area of rectangle is $75\times 100=7500$