A sporting goods store estmates that 20% of the students at a nearby university ski downhill and 15% ski cross country. Of those who ski downhill, 40% also ski cross country. What percentage of these students ski both down hill and cross country? Write as a decimal.

Answer 1

Down-hill =20%
Cross-country =15%
In down-hill and cross-country (20%)(40%) = 0.08