A school band sold 30 raffle tickets, each 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? Express your answer in simplest form.

Question

A school band sold 30 raffle tickets, each 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? Express your answer in simplest form.

welshfella · Answer

list all the numbers between 1 and 30 that are divisible by 4 and count them   then add 1 to that total  because of the 19.

P will be this total / 30

welshfella · Answer

or you could find  total of the the numbers divisible by 4 by the quotient of 30 / 4