Answer: 39 pounds
Step-by-step explanation:
At first, the warehouse worker loads a cart with 14 boxes and the boxes have an average weight of 24 pounds. The total weight of the boxes will be:
= 14 × 24
= 336 pounds
Since the worker picks up a new box and puts it on the cart and the average weight of the boxes is 25 pounds. It means that the boxes are now 15 and their total weight will be:
= 15 × 25
= 375 pounds
The weight of the new box will be:
= 375 - 336
= 39 pounds
