Question

Using the same bar graph, what is the percentage increase in production of product Q from 2013 to 2015?

• A. 50%
• B. 66.67%
• C. 75%
• D. 100%

Hint:

For percentage increase in bar graphs, use $\left(\dfrac{\text{Final} - \text{Initial}}{\text{Initial}}\right) \times 100$.

Answer 1

The Correct Option is B

- Step 1: Production of Q: 2013 = 15, 2015 = 25.
- Step 2: Increase = $25 - 15 = 10$.
- Step 3: Percentage increase = $\left(\dfrac{10}{15}\right) \times 100 = \dfrac{100}{1.5} \approx 66.67%$.
- Step 4: Verify: $15 \times (1 + \dfrac{2}{3}) = 15 \times \dfrac{5}{3} = 25$.
- Step 5: Check options: Option (2) is 66.67%, which matches.
- Step 6: Ensure correct years and formula.