A jar contains 10 red marbles and 30 blue marbles. what is the probability of randomly selecting a red marble from the jar?

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25-09-2017
Mathematics

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A jar contains 10 red marbles and 30 blue marbles. what is the probability of randomly selecting a red marble from the jar?

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Kalahira Kalahira · Answer 1 · 2017-10-05T15:55:08+02:00

Kalahira Kalahira

05-10-2017

Answer : 1/4 Total number of marbles = 40 number of red marbles = 10 Probability of an event =Number of favorable events /Total number of events Probability of getting a red marble = 10C1/40C1 = 10/40 = 1/4 or 25%

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lleal16 lleal16 · Answer 2 · 2022-02-22T20:23:59+01:00

lleal16 lleal16

22-02-2022

Answer:

10/40

Step-by-step explanation:

There are 10 red marbles out of a total of 40 marbles.

10 red marbles + 30 blue marbles = 40 total marbles.

If you are required to reduce fractions, then it would be 1/4

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