You have a jar of 20 jellybeans with 4 red beans, and you take out 1 red jellybean. Now, after taking out this bean, what is the new probability that you will pick a red jellybean out of the jar?

Question

A
4
1
9
​19
​
​4
​​

B
4
2
0
​20
​
​4
​​

C
3
1
9
​19
​
​3
​​

D
3
2
0
​20
​
​3
​​

Answer 1

C. 3/19

After taking out 1 red jellybean, there are now only 3 red jellybeans left in the jar and a total of 19 jellybeans left. Therefore, the new probability of picking a red jellybean is 3/19.