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These types of questions were always the most fun in early mathematics. Remember the clock? It's broken not only into hours but minutes as well.

Imagine that there are 60 seconds in one minute. So we know that an entire 60 seconds is 100% of a minute we can work back from there.

How many 20% would you need in order to make 100%? You would need 5 (5 x 20 = 100).

/ = per (60 seconds per 1 minute)

60 seconds/1 minute ÷ 5 periods/1 minute = 12 seconds/period

So 12 seconds would be exactly 20% of one minute.

  • 12 seconds (20%)
  • 24 seconds (40%)
  • 36 seconds (60%)
  • 48 seconds (80%)
  • 60 seconds (100%)
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12y ago
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Q: What is 20 percent of one minute?
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