by Susie
(morehead,ky)
If I live to be 80 years old and sleep 8 hours a day, How many years have I slept?
Solution
A day has 24 hours
24 = 8 + 8 + 8
So you spent 1 / 3 of your time sleeping.
You can get the same answer if you do 8 / 24
8 / 24 = (8 ÷ 8) / ( 24 ÷ 8) = 1 / 3
All you need to do now is to find 1/3 of 80
1 / 3 of 80 = 1 / 3 × 80 = 80 / 3
80 / 3 = (78 + 2) / 3 = 78 / 3 + 2 / 3 = 26 + 2/3
So that is 26 years + ( 2 / 3 of a year)
What is 2 / 3 of a year?
Since 2 / 3 of a year is a fraction of a year, the answer for 2 / 3 of a year will be in months.
1 year = 12 months.
Just find out what 2 / 3 of 12 is
2 / 3 of 12 is 2 / 3 times 12
2 / 3 times 12 = (2 times 12) / 3 = 24 / 3 = 8 months
Putting everything together, you slept for 26 years and 8 months during your lifetime.
Sep 17, 23 09:46 AM
Jun 09, 23 12:04 PM