Question

A number is chosen at random from the first 100 positive integers. Find the probability that the number is divisible by 5.

1/10
1/5
1/4

Answer 1

what does 5/100 reduce to

Answer 2

it reduces to 1/20

Answer 3

well first, do you know all the numbers that are divisible by 5? Like 5 and 10, do you know the other numbers that are divisible by 5?

Answer 4

it reduces to 1/20 so you would have 20% which = 1/5

Answer 5

actually that's not the way to solve it, we have to use all the numbers divisible by 5 so we have to figure out how many numbers between 1 and 100 are divisible by 5

Answer 6

so yeah, find out how many numbers are divisible by 5, then divide with that value as the numerator and 100 as the denominator, then write it as a percentage and decimal and you'll have your answer

Answer 7

and convert it to a fraction

Answer 8

To find out how many multiples of 5 there are between 1-100, divide 100/5

From there, divide by 100 again to get the probability out of 100. Then reduce.

Answer 9

like you do 5/100 then you get 1/20 which then you would do 20/100 and that would equal 1/5 which also ='s 20%

Answer 10

so 1/5 would be your answer