Multiple choice general knowledge

IF A DOCTOR GIVES YOU 3 PILLS AND TELLS ONE PILL EVERY HALF AN HOUR, HOW LONG WOULD IT BE BEFORE ALL THE PILLS HAD BEEN TAKEN?

  1. 2 HOURS

  2. 1 HOUR

  3. 1.5 HOURS

  4. 30 MINS

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If you take 1 pill every half hour starting at time 0, you take pills at 0 minutes, 30 minutes, and 60 minutes. All 3 pills are taken in 1 hour total, not 1.5 hours.