Multiple choice

$20$ card are numbered from $1$ to $20$. One card is drawn at random. What is the probability that the number on the card is divisible by $5$?

  1. $\dfrac {1}{2}$
  2. $\dfrac {1}{5}$
  3. $\dfrac {1}{3}$
  4. $\dfrac {1}{4}$
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B Correct answer
Explanation

Numbers divisible by 5 between 1 and 20 are 5, 10, 15, 20. There are 4 such numbers. Probability = 4/20 = 1/5.

AI explanation

The total number of possible outcomes is 20, and the numbers divisible by 5 are 5, 10, 15, and 20, giving 4 favorable outcomes. Using the classical definition of probability, the probability is 4 divided by 20. Simplifying this fraction results in 1 divided by 5.

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