🧏Three friends enter a restaurant and split a bill of 30 BTC — simple, right? Each pays 10 BTC. But then the waiter realizes that the bill was actually only 25 BTC, not 30!
He comes back with 5 BTC in 1-BTC coins. Unable to divide it evenly, he gives back 1 BTC to each friend (3 BTC in total) and quietly keeps 2 BTC for himself.
Now let's break it down:
Each person effectively paid 9 BTC (10 paid - 1 returned)
Total paid = 3 × 9 = 27 BTC
The waiter kept 2 BTC
So... 27 + 2 = 29 BTC? But wait... they originally paid 30 BTC 😱
Where is the missing 1 BTC??
👉 Spoiler: It's a logic trick — the 2 BTC the waiter kept is already part of the 27 BTC, not something to add.
25 BTC (actual bill) + 2 BTC (waiter's tip) = 27 BTC
The 3 BTC returned complete the original 30 BTC.
It's not missing — it's just hidden in the math 😉
A classic brain teaser with a Bitcoin twist — and a reminder: always check your change, even in crypto! 🧠💰
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