Question

from a set of 12 cards numbered 1 2 3 4 5 6 7 8 9 10 11 12 is drawn what is the probability of probability that its number is a multiple of 3​

Answer 1

Answer:

Since, total cards = 15

(i)  total odd no.'s from 1 to 15 = 8

    ∴ favorable outcomes= 8

   ∴ probability = 158

(ii) Total Multiples of 4 from 1 to 15 = 3

     ∴ favorable outcomes= 3

     ∴ probability = 153=51

(iii) Total no's divisible by 5 from 1 to 15 = 3

     ∴ favorable outcomes= 3

    ∴ probability = 153=51

(iv) Total no's divisible by 2 and 3 from 1 to 15 are:

       6,12

       ∴ favorable outcomes= 2

    ∴ probability = 152

(v) Total no's less than or equal to 10 from 1 to 15 = 10

     ∴ favorable outcomes= 10

    ∴ probability = 1510=32

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Answer 2

Answer:

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Step-by-step explanation:

total no of cards -12

multiple of 3 -3,6,9,12 (4 numbers)

therefore (p) of getting a multiple of 3 is : 4/12

simplify : 1/3