A curious student has a bag of multi-colored candies. He wants to know how many of each color are in the bag. He makes the following observations

Red 14
Green 36
Yellow 7
Purple 19
Blue 3

After he counts all the colors, he eats four green candies, and puts the rest in the bag. What is the probability that next time, he will choose a red candy?
a.0.14
b.0.17
c.0.18
d.0.19

Question

A curious student has a bag of multi-colored candies.  He wants to know how many of each color are in the bag.  He makes the following observations

Red          14
Green      36
Yellow      7
Purple      19
Blue      3

After he counts all the colors, he eats four green candies, and puts the rest in the bag.  What is the probability that next time, he will choose a red candy?
a.0.14
b.0.17
c.0.18
d.0.19

kropot72 · Answer

First find the total number of all the candies after four have been eaten. Lets call this number n. The probability of choosing a red candy is given by:
$$P(red)=\frac{number\ of\ red}{n}=you\ can\ calculate$$