The state of Virginia had 3.79 inches of rain in March, 4.5 inches of rain in April, 3.95 inches of rain in May, 3.09 inches of rain in June and 4.67 inches in July. What is the average rainfall amount, in inches, in Virginia?
Thoughts? Step-by-step reasoning:
It rained for a total of 3.79 + 4.5 + 3.95 + 3.09 + 4.67 = 20 inches. The rain period is from March through July for a total of 5 months so the average rainfall is 20 / 5 = 4 inches of rain per month.
Thus, the answer is 4.