Perimeters measured on five rectangular plots were 120 m, 124 m, 128 m, 132 m and 136 m. What is the mean perimeter in metres?
Q1. Perimeters measured on five rectangular plots were 120 m, 124 m, 128 m, 132 m and 136 m. What is the mean perimeter in metres?
Answer: 128
Explanation: Mean = (120 + 124 + 128 + 132 + 136) ÷ 5 = 640 ÷ 5 = 128 m.