Question

a number is selected at random from first 30 whole numbers what is the probability that the selected Number is a multiple of 3

Answer 1

Hi friend,

Here is your answer,

Number of possible outcomes = 10
Total number of outcomes = 30
P(E=multiple of three) =10/30
=1/3


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Answer 2

Probability = number of outcomes/total number of outcomes
Favourable outcomes = 3,6,9,12,15,18,21,24,27,30.
Number of favourable outcomes = 10
Total number of outcomes=30
P(multiple of 3) = 10/30
= 1/3
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