Question

10 watermelons have an average weight of 4.3 pounds and 5 pumpkins have an average weight of 3.4 pounds. What is the average weight of the 15 items?

Answer 1

Hello!

Let's find the mean of our two average weights!

4.3+3.4=7.7
7.7/2=3.85

Therefore, the average weight of the 15 items is 3.85 pounds.

I hope this helps!

Answer 2

Since the average is the sum divided by the count, the sum is the average times the count.

So the sum of the weights of the watermelons is 10(4.3)=43 pounds.

The sum of the weights of the pumpkins are 5(3.4)=17 pounds

The sum of the weight of the fruits is 43+17=60 pounds

Dividing by 15 fruits gives an average item weight of 60/15 = 4 pounds