Question

A number is chosen at random from the first 100 positive integers. Find the probability that the number is a multiple of 7.

Answer 1

100÷7=14...
Probability is 14/100=7/50

Answer 2

$|\Omega|=100\\ |A|=14\\\\ P(A)=\dfrac{14}{100}=\dfrac{7}{50}=14\%$