Free GMAT Practice Question

A garden cooperative ships seedling trays in two crate sizes: a large crate holds exactly 13 trays and a small crate holds exactly 8 trays. For one order the cooperative packed 196 trays, filled every crate it used to capacity, used at least one crate of each size, and used fewer than 20 crates altogether.

In the table, select the number of Large crates and the number of Small crates the cooperative used for this order. Make only two selections, one in each column.