Hank has 20 pieces of candy in a bag: 4 mint sticks, 3 jelly treats, and 13 fruit tart chews. If he eats one piece every 9 minutes, what is the probability his first two pieces will both be mint sticks?
a.3/95
b.1/25
c.2/5
d.9/380

Question

Hank has 20 pieces of candy in a bag: 4 mint sticks, 3 jelly treats, and 13 fruit tart chews. If he eats one piece every 9 minutes, what is the probability his first two pieces will both be mint sticks? 
a.3/95 
b.1/25
c.2/5
d.9/380

Vocaloid · Answer

Fixing a typo from my previous response

First calculate the probability of getting a mint stick.

(# of mint sticks)/(total # of candies) = ?

For the second mint stick, they’ve already eaten one, so subtract 1 from the total of mint sticks and total # of candies

(# of mint sticks - 1)/(total # of candies - 1) = ?

Then multiply the probabilities together