Final answer:
To find the percentage of time spent studying science, add up the time spent on each subject and divide the time spent studying science by the total time. Multiply the fraction by 100 to convert it to a percentage.
Step-by-step explanation:
To calculate the percentage of time spent studying science, we need to find the fraction of time spent studying science out of the total study time.
First, we need to find the total study time by adding up the time spent on each subject:
- Mathematics: 25 minutes
- Science: 35 minutes
- History: 40 minutes
Total study time = 25 + 35 + 40 = 100 minutes.
Next, we calculate the fraction of time spent studying science:
Fraction of time spent studying science = Time spent studying science / Total study time = 35 / 100 = 0.35.
To convert the fraction to a percentage, we multiply by 100:
Percentage of time spent studying science = 0.35 * 100 = 35%.