A rectangle has an area of 4 m² . The width is 1/5 m. What is the length of the rectangle?

To find the length of the rectangle, we can use the formula for the area of a rectangle:

Area = Length x Width

Given that the area is 4 m² and the width is 1/5 m, we can plug in the values to find the length:

4 = Length x 1/5

To solve for the length, we multiply both sides by 5:

4 x 5 = Length

20 = Length

Therefore, the length of the rectangle is 20 meters.