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While watching television from 7 PM to 8 PM you count 20 commercials each 30 seconds long. What nearest percent of the hour is taken by the commercials?
  1. 17%
  2. 16%
  3. 15%
  4. 14%
  5. All Of The Above
Explanation

TV duration form 7 pm to 8 pm = 1 hour = 60 minutes

Commercials time in minutes = 30 sec x 20 = 600 sec = 10 minutes

10 * 5 = 3x

3x = 50

x = 16.66667

nearly 17%


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