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If a doctor gives you 3 pills and tells you to take 1 pill every half hour, how long it would be before all the pills had been taken?
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A
1 hour
💡 Explanation:
Take the first pill at time 0:00, the second at 0:30, and the third at 1:00. The time from the first pill to the last is 1 hour. The key is recognizing that with 3 pills and 30-minute intervals, there are only 2 intervals between the first and last pill.