Multiple choice general knowledge math & puzzles

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

  1. 150

  2. 120

  3. 90

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

You take the first pill at 0 minutes, the second pill at 30 minutes, and the third pill at 60 minutes. Therefore, the total time elapsed from the first pill to the last is 60 minutes. A common mistake is to multiply 3 by 30.

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