A crate contains 20 oranges and 50 apples and another crate contains 30 oranges and 100 grapes. A worker combines the two crates such that all the fruits are in the same crate. What is the percentage of oranges in the combined crate?
25%
Total number of oranges in the combined crate = 20 + 30 = 50
Total number of fruits in the combined crate = 20 + 50 + 30 + 100 = 200
Percentage of oranges in the combined crate
=50200×100=25%