Thomas has a box with four black color bottles and eight gray color bottles. Two bottles are drawn without replacement from the box. What is the probability that both of the bottles are gray
Mathematics · Middle School · Tue Nov 03 2020
Answered on
According to the question , there are 12 total bottles in the box
There are 4 black color and 8 gray color bottles
The probability of getting a grey bottle on the first draw = 8/12
Now there are 11 bottles left in the box, and 7 of them are grey
The probability of getting a grey bottle on the second draw is 7/11
The probability of both events =
(8/12) * (7/11) = 56/132
= 14/33 Answer