A box contains 6 red marbles numbered 1 through 6 and 4 white marbles numbered from 12 through 15. Find the probability that a marble drawn is (i) white (ii) white and odd numbered (iii) even numbered (iv) red or even numbered.

Explanation

Thereare `6` red marbles numbered from `1` to `6` and `4` white marbles numbered from `12` to `15`.

`:.` Total number of marbles `= 10`

(i) Probability of a marble drawn is white ` = 4/10 = 2/5`

(ii) There are two marbles that are white and odd numbered.

`:.` Probability of a marble drawn is white and odd numbered ` = 2/10 = 1/5`


(iii) There are `3` red marbles that are even numbered and `2` white marbles that are even numbered.

So, there are `5` marble that are even numbered.

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