In a pack of lotteries, there are 5 prizes and 20 blanks. A lottery is drawn at random. The probability of getting prize is:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → \(\frac{1}{5}\)
When every outcome is equally likely, probability = favourable outcomes ÷ total outcomes. Here every lottery in the pack, prize or blank, is an outcome.
Total lotteries, all equally likely to be drawn: \(5+20=25\)
Lotteries with a prize, the favourable outcomes: 5
Probability of a prize: \(\displaystyle\frac{5}{25}=\frac{1}{5}\)