Reminds me of the "splitting the dinner bill" problem we had fun with in middle school. It goes like this.
Three friends go out for dinner and decide they will split the bill threeways. The bill comes to $25. Each friend gives a $10 note with $30 pooled together to pay the bill. The waitress returns with five $1 bills in change. They leave a $3 tip for the waitress with $2 in change remaining.
The question is: Of the original $30 paid if we deduct $3 in tips paid, we get $27. Adding the $2 in change remaining we get $29. Where is the other $1?
Three friends go out for dinner and decide they will split the bill threeways. The bill comes to $25. Each friend gives a $10 note with $30 pooled together to pay the bill. The waitress returns with five $1 bills in change. They leave a $3 tip for the waitress with $2 in change remaining.
The question is: Of the original $30 paid if we deduct $3 in tips paid, we get $27. Adding the $2 in change remaining we get $29. Where is the other $1?