In the stacked bar chart, Category A has 50 units, Category B 30 units, Category C 20 units. What percent of the total does Category B represent?

In the stacked bar chart, Category A has 50 units, Category B 30 units, Category C 20 units. What percent of the total does Category B represent?

• A. 25%
• B. 30%
• C. 40%
• D. 50%

Answer: (B)

To find a category’s share in a stacked bar, divide that category’s units by the total units and multiply by 100. Here, the total is 50 + 30 + 20 = 100. Category B has 30 units, so 30 ÷ 100 = 0.30, which is 30%. So Category B represents 30% of the total. This aligns with the visual proportion: B makes up about a third of the bar. If the numbers were different, the percentages would change accordingly (for example, 25% would require 25 out of 100).

To find a category’s share in a stacked bar, divide that category’s units by the total units and multiply by 100. Here, the total is 50 + 30 + 20 = 100. Category B has 30 units, so 30 ÷ 100 = 0.30, which is 30%. So Category B represents 30% of the total. This aligns with the visual proportion: B makes up about a third of the bar. If the numbers were different, the percentages would change accordingly (for example, 25% would require 25 out of 100).