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Real Numbers

Question
CBSEENMA10009331
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What is the probability that a number selected have the number 1,2,3..............,15 is a multiple of 4.

Solution

Here, we have S = {1, 2, 3,....., 15}
⇒    n(s) = 15
Let A be the favourable av + causes of getting a multiple 4, then A = {4,8,12}
⇒     n (A) = 3
Therefore, P(A) = fraction numerator straight n left parenthesis straight A right parenthesis over denominator straight n left parenthesis straight S right parenthesis end fraction equals 3 over 15 equals 1 fifth.

Some More Questions From Real Numbers Chapter

The probability of an event that cannot happen is ________ Such an event is called __________.

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