reduced fraction

Question

A box contains 30 striped or solid paper clips: 8 are red, 3 are green, 5 are blue, 7 are blue and red, 3 are black, and 4 are white. One paper clip is chosen.

 

The paper clip was blue.

Answer 1

The probability of picking a blue paper clip, P(B) =

(number of blue paper clips) / (total number to choose from) = 5 / 30 = 1 / 6.