A gumball machine contains $40$ blue gum balls, $20$ red gumballs, $15$ gumballs, and $25$ purple gumballs. What is the probability that a person gets a red gumball?

0.10

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0.20

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0.25

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0.15

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Solution

The correct option is B $0.20$
Number of blue gum balls $= 40$
Number of red gum balls $= 20$
Number of gum balls $= 15$
Number of purple gum balls $= 25$
Total balls $= 100$
The probability that a person gets red gumball is $\frac{20}{40 + 20 + 15 + 25} = \frac{1}{5} = 0.2$

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A gumball machine contains 40 blue gum balls, 20 red gumballs, 15 gumballs, and 25 purple gumballs. What is the probability that a person gets a red gumball?

The correct option is B 0.20Number of blue gum balls=40Number of red gum balls=20Number of gum balls=15Number of purple gum balls=25Total balls=100The probability that a person gets red gumball is 2040+20+15+25=15=0.2

A gumball machine contains $40$ blue gum balls, $20$ red gumballs, $15$ gumballs, and $25$ purple gumballs. What is the probability that a person gets a red gumball?

The correct option is B $0.20$
Number of blue gum balls $= 40$
Number of red gum balls $= 20$
Number of gum balls $= 15$
Number of purple gum balls $= 25$
Total balls $= 100$
The probability that a person gets red gumball is $\frac{20}{40 + 20 + 15 + 25} = \frac{1}{5} = 0.2$