So $ n-1 = 4 $ → $ n = 5 $? No: $ k = n-1 $, so $ n-1 = 4 $ → $ n = 5 $? But wording: after how many weeks — if at end of week 4, and we want first time, it’s after 4 weeks. - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

So $ n-1 = 4 $ → $ n = 5 $? No: $ k = n-1 $, so $ n-1 = 4 $ → $ n = 5 $? But wording: after how many weeks — if at end of week 4, and we want first time, it’s after 4 weeks.