Shyam collected $12$ indian, $13$ Russian and $11$ American postage stamps. Find the probability that one stamp, chosen at random by his sister will be a non-Indian stamp.

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Solution

The total number of stamps is $12 + 13 + 11 = 36$
No .of non indian stamps is $13 + 11 = 24$
Probability is $\frac{24}{36} = \frac{2}{3}$

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Shyam collected 12 indian, 13 Russian and 11 American postage stamps. Find the probability that one stamp, chosen at random by his sister will be a non-Indian stamp.

The total number of stamps is 12+13+11=36No .of non indian stamps is 13+11=24Probability is 2436=23

Shyam collected $12$ indian, $13$ Russian and $11$ American postage stamps. Find the probability that one stamp, chosen at random by his sister will be a non-Indian stamp.

The total number of stamps is $12 + 13 + 11 = 36$
No .of non indian stamps is $13 + 11 = 24$
Probability is $\frac{24}{36} = \frac{2}{3}$