Olivia does her Maths, French and History homework It takes her a total of three hours. She spends 70 minutes on her History homework. Olivia spends 15 minutes less on her Maths homework than her History homework. How many minutes does Olivia spend doing her French homework?
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Given:
- Total time taken by Olivia to complete her Maths, French and History homework = 3 hours or 180 minutes
- Time spent on History homework = 70 minutes
- Time spent on Maths homework = (Time spent on History homework) - 15 = 65 minutes
To find:
Minutes spent by Olivia on her French homework
Solution:
The time spent on History homework + time spent on Maths homework + time spent on French homework = 180 minutes.
Let the minutes spent on French homework be x.
The following equation will be formed:
70 minutes + x minutes + 65 minutes = 180 minutes.
So,
- 70 + x + 65 = 180
- 135 + x = 180
- x = 180 - 135
- x = 45 minutes
Therefore, Olivia takes 45 minutes to do her French homework.
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