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Easy question for people, btw the question is not for me lol

Maya spent 2 hours on her phone, then she was left with 38% battery left.
then after another hour passed by and now it is 9%.

How many hours and minutes did she spend on her phone

User Asmoun
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1 Answer

3 votes
We can start by using the information given to figure out how much battery Maya used in the first 2 hours. If she was left with 38% battery, that means she used 100% - 38% = 62% of her battery. Since 2 hours is 2/24 = 1/12 of a day, we can say that Maya used 62% / 12 = 5.17% of her battery per hour.

Now we can use this rate to figure out how much battery Maya used in the third hour. If she was left with 38% battery after 2 hours, then she had 100% - 38% = 62% of her battery left. If another hour passed by and she was left with 9% battery, that means she used 62% - 9% = 53% of her battery in that hour. Since we know she uses 5.17% of her battery per hour, we can divide 53% by 5.17% to get the total number of hours she spent on her phone:

53% / 5.17% = 10.24 hours

So Maya spent 2 hours + 1 hour + 10.24 hours
User Mark Irvin
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