Study the pie chart and answer the question that follows.

The pie chart shows the numbers of hours used for different activities of the day. Total hours in a day are 24.

If a student devotes 4 h to other activities instead of 2 h and reduces 1 h each from school and sports activities, then what will be the approximate percentage decrease in school hours?

Correct option is A

Given:

Initial school hours = 7 hours

Reduced school hours = 7 - 1 = 6 hours

Concept Used:

Percentage decrease is calculated using the formula:

​$$\text{Percentage Decrease} = \left( \frac{\text{Initial Value} - \text{New Value}}{\text{Initial Value}} \right) \times 100$$​

Solution:

​$$\text{Percentage Decrease} = \left( \frac{7 - 6}{7} \right) \times 100 = \left( \frac{1}{7} \right) \times 100 \approx 14\%$$​