You are in a line at the bank drive-through and 3 cars are in front of you. You estimate that the clerk is taking about six minutes per car to serve. How long do you expect to wait in line?

Question

Business

Madelyn Alexander

21 January, 13:38

You are in a line at the bank drive-through and 3 cars are in front of you. You estimate that the clerk is taking about six minutes per car to serve. How long do you expect to wait in line?

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Checkers · Answer 1

I will wait in line for about 18 minutes

Explanation:

If I am in a line at a bank drive through and 3 cars are in front of me and the clerk is taking about 6 minutes per car to serve, the number of minutes I should expect to wait in line can be computed as follows:

Since the clerk uses 6 minutes to serve a single car, their are 3 cars before me. This means the clerk will serve those 3 cars before me. Mathematically,

if 1 car uses 6 minutes

3 car will use? minutes

cross multiply

3 * 6

3 * 6 = 18 minutes

I will wait in line for about 18 minutes