To understand how the forwarding of the email works, let's break it down step by step.
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Round 1: The original sender forwards the email to 10 friends.
- Total people who received the email = 10 (just the friends).
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Round 2: Each of those 10 friends forwards the email to 10 more friends.
- Total people who received the email in this round = 10 (from Round 1) x 10 = 100.
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Round 3: Each of those 100 friends forwards the email to 10 more friends.
- Total people who received the email in this round = 100 x 10 = 1,000.
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Round 4: Each of those 1,000 friends forwards the email to 10 more friends.
- Total people who received the email in this round = 1,000 x 10 = 10,000.
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Round 5: Each of those 10,000 friends forwards the email to 10 more friends.
- Total people who received the email in this round = 10,000 x 10 = 100,000.
So, the sequence showing the total number of people who received the email after each round is:
- Round 1: 10
- Round 2: 100
- Round 3: 1,000
- Round 4: 10,000
- Round 5: 100,000
Thus, the sequence is: 10, 100, 1,000, 10,000, 100,000.