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Brain Teasers Hard 1 min

A doctor gives you three pills and tells you to take one every 30 minutes. How long will the pills last?

Hint
The first pill is taken immediately.

Answer

1 hour.

Explanation

Take the first pill immediately, the second after 30 minutes, and the third after 60 minutes.

Step-by-Step Solution

Pill 1 = time 0.
Pill 2 = 30 minutes.
Pill 3 = 60 minutes.
Total elapsed time = 1 hour.
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