Question: What is the perimeter of a rectangle with length 5 units and width 3 units?

Options:

1. 15 units
2. 20 units
3. 8 units
4. 10 units

Correct Answer: 15 units

Solution:

The perimeter P of a rectangle is given by P = 2(length + width). Here, P = 2(5 + 3) = 2(8) = 16 units.