сдача 101
Арик прислал перед концом дня в пятницу: -
"Three guys rent a room for $30 and each pays $10. The receptionist realizes he made a mistake and sends back to the room $5 with the bellboy.
The bellboy doesn’t know how to divide 5 by 3, so he keeps $2 and gives $1 to each guy, therefore each guy only paid $9. Nine times three is 27, plus 2 from the bellboy is 29.
Where is a dollar?"
по-моему я что-то такое уже решал.
"Three guys rent a room for $30 and each pays $10. The receptionist realizes he made a mistake and sends back to the room $5 with the bellboy.
The bellboy doesn’t know how to divide 5 by 3, so he keeps $2 and gives $1 to each guy, therefore each guy only paid $9. Nine times three is 27, plus 2 from the bellboy is 29.
Where is a dollar?"
по-моему я что-то такое уже решал.