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How many minutes is it before 12 noon if 28 minutes ago it was three times as many minutes past 10am?
Wiki User
∙ 12y ago
If the time we're looking for is x, from 10:00 to 12:00 we have 3x + 28 min + x. The total time from 10 to 12 is 120 minutes, so
3x + 28 min + x = 120 min
Subtract 28 min from both sides and add 3x + x...
4x = 92 min
Divide both sides by 4...
x = 23 min
It's 23 minutes to 12.
Wiki User
∙ 12y ago
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