“I’m telling you the average is about $18.00,” said Maya Stafford, the head server at the…
“I’m telling you the average is about $18.00,” said Maya Stafford, the head server at the Mountain Grill. Maya and Raktida were talking about the check average achieved by the Grill on the previous two nights. “Look,” continued Maya, “on Saturday night the check average was about $22.00. People drink on Saturday night. On Sunday, it was about $14.00 because they don’t drink as much. $22.00 plus $14.00 is $36.00. $36.00 divided by 2 equals $18.00. Say, didn’t you tell me you went to restaurant management school? Didn’t you learn anything there?!”
Raktida, the new dining room supervisor (and an honor hospitality school graduate), was unconvinced by Maya’s logic. While Maya was a great server, Raktida thought she was dead wrong—by at least $2.00! To find out who is right, complete the Mountain Grill’s sales history record below, and then answer the questions following it.
a. What were the Grill’s total sales on Saturday night?
b. What was the Grill’s check average on Saturday night?
c. How many guests did the Grill serve on Sunday night?
d. What was the Grill’s check average on Sunday night?
e. What was the Grill’s two‐day check average?
f. Who was right, Maya or Raktida?
g. Based on your answer in question (f) above, what was her error in logic as she mentally computed the combined days’ check average?