Question: User: 50% of 20 =
1. **State the problem:** Find 50% of 20.
2. **Formula:** To find a percentage of a number, use the formula $$\text{Percentage value} = \frac{\text{Percentage}}{100} \times \text{Number}$$.
3. **Apply the formula:** Here, the percentage is 50 and the number is 20.
$$\text{Value} = \frac{50}{100} \times 20$$
4. **Simplify the fraction:**
$$\frac{50}{100} = \frac{\cancel{50}}{\cancel{100}} = \frac{1}{2}$$
5. **Calculate:**
$$\frac{1}{2} \times 20 = 10$$
6. **Answer:** 50% of 20 is 10.