MODEL ANSWER:

A clear picture of weekly sales by a coffee shop in an office building is depicted in the given table.

As per the table, except in the afternoon between 2:30 and 5:30 pm, coffee remains the most popular item in the shop. Its sales is seen dwindling in number from 265 between 7:30 and 10:30 am to 145 between 2:30 and 5:30 pm. Later, it climbs to 200. However, the highest sale during a particular time is seen in the sales of pastries (275 between 7:30 and 10:30 am). Nearly 110 cups of tea are sold during this time, which is more than double the number of sandwiches. This pattern reverses between 10:30 am and 2:30 pm, when the ratio of sales becomes 1:4, in which the tea sales plummets to 50. A sharp decline is seen in case of pastries’ sales too in this period, when its sales slumps to 95. Pastries become the most sold item between 2:30 and 5:30 pm whereas, the sale of sandwiches nose-dives to 40. Later, between 5.30 and 8:30 pm, its sales goes up to 110. During this time, the sale of tea and pastries ranges from 75 to 80.

Overall, it is clear that most sales made by the coffee shop is during the first two time periods.