Question

There are $100$ cards numbered $1$ to $100$. The probability that a randomly chosen card has the digit $5$ on it is equal to

• A. $\frac{1}{5}$
• B. $\frac{1}{10}$
• C. $\frac{19}{100}$
• D. $\frac{1}{4}$

Answer 1

Answer: (C)

$\frac{19}{100}$

Desired values are $05,15,25,35,\mathrm{45...95},50-59$
Total numbers possessing $5$ as a digit is $20$.
Thus, Probability $=20/100=1/5$