Answer:
1296 apples.
Step-by-step explanation:
We have been given that a truck has 4 crates of apples each crate has an equal number of apples all together the truck is carrying 1728 apples.
First of all let us figure out the number apples in one crate by dividing 1728 by 4.


Now we will multiply number of apples in one crate by 3 to find the number of apples in 3 crates.


Therefore, there are 1296 apples in 3 crates.