Question

A box contains 20 miniature golf putt-putt balls; 10 are yellow, 6 are red, and 4 are pink. What is the probability of picking a red golf ball, replacing it, and then picking a yellow golf ball? Write your answer as a fraction in simplest form.

Answer 1

3/20

Explanation:

From the above question,

The total number of balls = 20

Number of red balls = 6

Number of yellow balls = 10

Probability of picking a red ball with replacement = P(red) = 6/20

Probability of picking a yellow ball with replacement = P(yellow) = 10/20

The probability of picking a red golf ball, replacing it, and then picking a yellow golf ball is calculated as

P(red) × P( yellow)

= 6/20 × 10/20

= 3/10 × 1/2

= 3/20