He then went to see the oranges being harvested. He found out that they harvest 8 sacks per day. How many oranges do they harvest per day if each sack contains 42 oranges?
1. He went to see the oranges being harvested. 
2. He found out that they harvest 8 sacks per day. 
3. How many oranges do they harvest per day if each sack contains 42 oranges?

We are trying to find out how many oranges are being harvested per day. We are given that each sack contains 42 oranges, and that 8 sacks are being harvested per day. 

To find out the total number of oranges being harvested per day, we need to multiply the number of sacks being harvested per day (8) by the number of oranges in each sack (42). 

8 sacks x 42 oranges/sack = 336 oranges/day