Answer:
The average number of pounds they bought was 30 pounds.
Step-by-step explanation:
we know that
To find out the average number of pounds, add the total number of pounds for each boy and then divide by the number of boys.
so
[tex]\frac{(30+40+10+40)}{4}=\frac{120}{4}=30\ pounds[/tex]
therefore
The average number of pounds they bought was 30 pounds.