Decide how many cakes to order when a party could have as few as 50 people and as many as 100 people.

Answer 1

To decide how many cakes to order, a good approach would be to consider the average number of people attending parties and add a little extra to accommodate variations.

If the party could have as few as 50 people and as many as 100 people, then it would be reasonable to assume that the average number of people attending the party would be close to the middle, which is (50 + 100) / 2 = 75 people.

To accommodate variations and ensure there is enough cake for everyone, it would be wise to order slightly more than the average number of people attending. Adding 10-20% extra usually works. Therefore, calculating 10-20% of 75:

10% of 75 = 0.1 x 75 = 7.5, rounded up to 8 people.
20% of 75 = 0.2 x 75 = 15 people.

So, considering the range of attendees, it would be a good idea to order around 75 + 8 = 83 cakes if a 10% buffer is added, or around 75 + 15 = 90 cakes if a 20% buffer is added.