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Inclusive Totals

In the deli section at a grocery store, customer tag numbers 157 through 265 were served. How many customers were served that day?


Answer
This is an inclusive type problem where you need to find out how many people in a group
Since we need to include person 157, we do the following formula

People in the group = Maximum Person - Minimum Person + 1
People in the group = 265 - 157 + 1
People in the group = 109