As a part of a college activity, 200 hundred girls are arranged in 10 rows with 20 girls in each one of them. Now, the shortest girl from each column is selected and the tallest from those 20 girls is named P. The girls return to their original places.
Then, the tallest girl from each row is selected and among these 10, the shortest girl is named Q.
Can you find out which one of P and Q is taller?