Question

A gumball machine contains 6 red gumballs and 3 white gumballs. Two gumballs are purchased, one after the other, without replacement. Find the probability that at least one gumball is white.

Answer 1

Answer:

first all gumballs

total gumm all=9

probability of white gummball

no of white gumball/total no of gumballs

=3/9

=1/3 ans

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Answer 2

The Probability That At Least One Gumball Is White Is 1/4 Or 25%

GIVEN

Number of red gumballs = 6

Number of white gumballs = 3

TO FIND

The probability that at least one gumball is white.

SOLUTION

We can simply solve the above problem as follows-

According to the question,

Number of Red gumballs = 6

Number of white gumballs = 3.

So, Total number of gumballs in the machine = 12.

To find the probability that out of two gumballs at least one of them is white, we will apply the formula-

Probability = Favorable outcomes/total outcomes.

Where,

Favorable outcomes = 3

Total outcomes = 12

Putting the values in the above formula we get,

Probability = 3/12 = 1/4

we can also represent in terms of percentage as -

1/4 × 100 = 25%.

Hence, the probability that at least one gumball is white is 1/4 or 25%

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