Question

Andrea bought a box of 25 pens. Inside the box were 4 red pens, 5 black pens, 6 purple pens and the rest were blue pens. What percent of pens were blue?

Answer 1

40%

Explanation:

4 + 5 + 6 = 15

25 - 15 = 10 blue pens

2/5 are blue

2/5 = 40%