Question

A school band sold 30 raffle tickets. Each ticket is labeled with a number from 1 to 30. One winning ticket will be drawn.

What is the probability that the number of the winning ticket will be a multiple of 4 or the number 19?

Enter your answer as a fraction, in simplified form, in the box.

Answer 1

4/15. There are 7 multiples of 4 before the number 30, plus one more number (19) gets you to 8/30 which simplifies to 4/15

Answer 2

Answer: Our required probability will be
`(4)/(15)`

Explanation:

Since we have given that

Number written on ticket = 1 to 30

Possible outcomes of the winning ticket will be a multiple of 4 or the number 19.

So, it will be

`\{4,8,12,16,20,24,28,19\}`

so, probability that the number of the winning ticket will be

`(8)/(30)\\\\=(4)/(15)`

Hence, our required probability will be
`(4)/(15)`