Mathematics · Geometric Progression
It takes 5 minutes for a person to pass a rumor to two other people. The rumor tree continues in this manner, with each person taking 5 minutes to pass it to two new people. How many minutes will it take for the rumor to spread to a total of 729 people (including the initial person)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 136 min
- 230 min✓
- 325 min
- 445 min
Correct answer
30 min
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