4) The length of a rectangle is 2 cm less than 7 times

the width. The perimeter is 60 cm. Find the width and

length.

Answer : The width and  length of rectangle is, 4 cm and 26 cm respectively.

Explanation :

Let the length of rectangle be, 'x' and width of rectangle be, 'y'.

The length of a rectangle is 2 cm less than 7 times  the width. The equation will be:

           .............(1)

The perimeter of rectangle is 60 cm. The equation will be:

           .............(2)

Now put the value of 'x' from equation 1 to 2, we get:

Now put the value 'y' in equation 1, we get:

Thus, the width and  length of rectangle is, 4 cm and 26 cm respectively.