Angie sells handmade bracelets at craft fairs. She bought 2 packs of charms. One pack has 150 small charms and 60 large charms. The other pack has the same ratio of small to large charms. The second pack has 50 small charms.

How many large charms are in the second pack?

The ratio of small to large charms in the first pack is 150/60 = <<150/60=2.5>>2.5.

If the second pack has 50 small charms, then there should be 50/2.5 = <<50/2.5=20>>20 large charms in the second pack. Answer: \boxed{20}.