Question

A box contains 5 red, 6 green, 7 blue and 2 yellow coloured pencils.
Jenny picks one out of the box
a) What is the probability that it is a green pencil 1
b) She does NOT replace the pencil but draws another one
What is the probability that this is a blue pencil 2

Answer 1

Answer:

(a)3/10

(b)7/19

Step-by-step explanation:

a)total pencils=20

green=6

p(green)=6/20=3/10

b)total-20-1=19

blue=7

p(blue)=7/19