Question 1158952: According to statistics, a person will devote 33 years to sleeping and watching TV. The number of years sleeping will exceed the number of years watching TV by 23. Over the lifetime, how many years will the person spend on each of these activities?
Answer by ikleyn(52890)   (Show Source):
You can put this solution on YOUR website! .
Assuming that sleeping and watching TV are DISJOINT events, we cam write THESE two equations
Sleeping + watching = 33
Sleeping - watching = 23
----------------------------------- Add the equations.
2*sleeping = 33 + 23 = 56; hence, sleeping = 56/2 = 28 years.
Then watching TV is 33-28 = 5 years.
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Solved, answered, explained, and completed.
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