« Previous Problem - Triangle Inequality    Next Problem - 3 Points on a Line »

Combinations

Jane likes to wear 2 bracelets, each a different color. If she has 7 bracelets each of a different color, how many combinations of 2 different-colored bracelets can she select to wear?



A)  15
B)  9
C)  0
D)  21
E)  -3

Show me the Answer





An Automated Online Math Tutor serving 8.1 million parents and students in 235 countries and territories.

Our Services
Top Categories
Community