Mixed Up numbers and Time Teasers...
1. Between noon and midnight, but not counting these times, how often will the minute hand and hour hand of a clock overlap?
2. If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?
3. How many 9’s do you pass when you start at 1 and count up to 100?
Solution
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