Jerry uses 3.5 cups of rice to make 5 servings. he needs to make 32 servings. if rice is sold in 4 cup boxes, how many boxes will he need to buy?

I think he will have to buy 5.6 or 6 boxes

Because i did: 3.5÷5 to get cups per serving which is .7 then i did .7×32 to get the amount of cups for 32 servings which is 22.4 then i did 22.4÷4 to get 5.6 which is the amount of boxes to buy.

I think the answer is 5.6 or 6 unless you have to round or something or you have multiple choice then that is my answer.

For this data set:
Mean:  (3+3+4+4+4+5+5+5+5+30) : 10 = 6.8
Mode : 5
Median : (4+5) : 2 =4.5
In this case, the mean is not the best way to show central tendency.
The median is less affected by outliers and skewed data.
 The best measure for the central tendency is the median:  4.5