Question

In the last several weeks, 86 days saw rain and 38 days saw high winds. In that same time period, 21 days saw both rainand high winds. How many days saw either rain or high winds?

Answer 1

To count the number of days that either rain or had high winds we need to add the number of days for each scenario and subtract the number of days both scenarios happened. This comes from the fact that we will counting twice those days if we don't make the subtraction. With this in mind we have that:

`86+38-21=103`

Therefore, 103 days saw either rain or high winds.