JAMB 1984 · UME · Q9

Bola chooses at random a number from 1 to 300. What is the probability that the number is divisible by 4?

Worked solution (try it first)

There are 300 equally likely numbers.
The multiples of 4 from 1 to 300 are $4, 8, \ldots, 300$ , and $300 \div 4 = 75$ of them.
So the probability is $\frac{75}{300} = \frac14$ , option B.