Question

You want to throw a big party and you've done your research on local caterers. One place charges $9.50 for refreshments for 10 guests. At this rate, how much would it cost to have refreshments for 63 guests?

Answer 1

To find out the cost of refreshments for 63 guests based on the rate of $9.50 for 10 guests, we can use the following steps:

1. First, determine how many groups of 10 guests are in 63 guests:
\[
\frac{63}{10} = 6.3
\]
This means we need to pay for 6 full groups of 10 guests, plus a little extra for the remaining 3 guests.

2. Since 6 full groups each cost $9.50, the cost for those guests is:
\[
6 \times 9.50 = 57.00
\]

3. Now, we calculate the additional cost for the remaining 3 guests. To find the cost per guest, we divide the cost for 10 guests by 10:
\[
\frac{9.50}{10} = 0.95
\]
So, the cost for 3 additional guests will be:
\[
3 \times 0.95 = 2.85
\]

4. Finally, we sum the costs for the 6 full groups and the 3 additional guests:
\[
57.00 + 2.85 = 59.85
\]

Thus, the total cost for refreshments for 63 guests is **$59.85**.