Question

8. (a) From the 30 tickets marked with the first 30 natural number, One is drawn at random. Find the chance that the number on it is a multiple of (0) 3 or 7 and (it) 3 or 5


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Answer 1

1/3

Step-by-step explanation:

total number of tickets = 30

multiples of 5

5, 10, 15, 20, 25, 30

multiples of 7

7, 14, 21, 28

tickets with numbers of multiples of 5 and 7 = 10

total number of outcomes = 30

number of favourable outcomes = 10

probability = 10/30 = 1/3

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Answer 2

1/3

Step-by-step explanation:

total number of tickets = 30

multiples of 5

5, 10, 15, 20, 25, 30

multiples of 7

7, 14, 21, 28

tickets with numbers of multiples of 5 and 7 = 10

total number of outcomes = 30

number of favourable outcomes = 10

probability = 10/30 = 1/3

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