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100 raffle tickets, numbered 1 to 100 are placed in a drum. A ticket is taken from the drum at random. What is the probability that the number on the ticket is a multiple of 5?

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Answer:

AI-generated answer

To find the probability that the number on the ticket is a multiple of 5, we need to determine the number of favorable outcomes (tickets with numbers that are multiples of 5) and divide it by the total number of possible outcomes (total number of tickets).

The total number of tickets is 100.

Now, let's determine the number of tickets with numbers that are multiples of 5. We can do this by finding the count of multiples of 5 between 1 and 100.

The first multiple of 5 is 5, and the last multiple of 5 before or equal to 100 is 100.

To find the count of multiples of 5, we can divide the last multiple (100) by 5 and subtract the first multiple (5) by 5, and then add 1 to include the last multiple itself.

Count of multiples of 5 = (100/5) - (5/5) + 1 = 20 - 1 + 1 = 20

Therefore, there are 20 tickets with numbers that are multiples of 5.

Now, we can calculate the probability by dividing the number of favorable outcomes (20) by the total number of possible outcomes (100).

Probability = Number of favorable outcomes / Total number of possible outcomes

Probability = 20 / 100

Probability = 1/5

Probability = 0.2

The probability that the number on the ticket is a multiple of 5 is 0.2 or 1/5

answered
User Ali Irawan
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