Multiple choice general knowledge

A doctor gives you three pills telling you to take one every half hour. How many minutes would the pills last?

  1. 45

  2. 90

  3. 120

  4. 60
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If you take the first pill at time 0, the second pill 30 minutes later, and the third pill 30 minutes after that, the pills last 60 minutes total. The interval between pills is 30 minutes, so three pills taken at 0, 30, and 60 minutes span 60 minutes. Options A (45), B (90), and C (120) result from miscounting intervals.

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