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A glass jar contains $6$ red, $5$ green, $4$ blue and $5$ yellow marbles of the same size. Hari takes out a marble from the jar at random. What is the probability from the subsequent choices that the chosen marble is of red color?

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710

310

45

12

answer is B.

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Detailed Solution

It is given that, the glass bar contains

6

red,

5

green,

4

blue and

5

yellow marbles.
The objective is to find the probability that the chosen marble is of red color.
Formula used for probability of occurring an event is,

1

.
Find the total numbers of marbles.
6 + 5 + 4 + 5 = 20
The probability that the chosen marble is of red color is given by,

= \frac{Number of red marbles}{Total number of marbles}

= \frac{6}{20}

= \frac{3}{10}

The probability of getting a red marble is

\frac{3}{10} .

Hence, option 2 is correct.

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