To obtain the number of drinls that the cafeteria sells in an hour, the following steps are recommended:
Step 1: Express the rate at which the cafeteria sells drinks, as follows:
Step 2: Multiply the rate above by the appropriate conversion factor which will help express it in a per-hour basis, as below:
Step 3: Simplify to obtain the final expression, as follows:
Therefore, the cafeteria sells 120 drinks in an hour