20% of 150 is how much
The correct answer and explanation is:
20% of 150 is 30.
To calculate 20% of a number, you first convert the percentage into a decimal. A percentage is simply a fraction with a denominator of 100. So, 20% is equivalent to 20 divided by 100, which gives 0.20 as the decimal.
Next, multiply the decimal by the number you want to find the percentage of. In this case, you multiply 0.20 by 150.
0.20 × 150 = 30.
Thus, 20% of 150 is 30.
This concept can be applied to any percentage calculation. The formula is: Percentage×Total Number=Part of the Total\text{Percentage} \times \text{Total Number} = \text{Part of the Total}
For example, if you needed to calculate 50% of 150, you would use the same method:
50% = 50 ÷ 100 = 0.50
0.50 × 150 = 75
In this way, calculating percentages becomes a straightforward operation of converting the percentage into a decimal and then multiplying it by the given number. You can apply this same method to calculate percentages of any value, whether it’s a financial figure, a measurement, or a population statistic. Additionally, percentages are useful in determining discounts, tax amounts, and interest rates, making them essential for daily decision-making and problem-solving.