# Where is the lost dollar? [duplicate]

Somebody explained me this problem, but I am not sure to understand what is wrong.

Three people go to a bar to have a drink.
To pay the bill everyone gives $10. The barman gives back$5 coins.
Every people take $1 back and leave the$2 other dollar for the barman.


If everybody give \$10 and get \$1 back, they paid \$9 right? 3 *$9 + $2 =$29


Where is the missing dollar?

## marked as duplicate by Jyrki LahtonenOct 13 '16 at 8:56

• if every people take $1$,then barman also take $1$ right? :D – dato datuashvili Jan 29 '14 at 15:17
• Dat grammar wow – qwr Jan 29 '14 at 17:10
• You are adding the 2 the barman got to the 27 they spent. The 2 comes out of the 27 to get the 25 the bar got. There is no reason to get anything sensible when you add 27 and 2 here. – Ross Millikan Jan 29 '14 at 17:10
• @qwr I eventually fixed it but you could also have proposed to edit the question yourself. Tell me if you see something I missed. – Natim Dec 30 '17 at 16:28

True $3*9=27$.
But they paid $25\$$and gave 2 \ tip. And$$25+2=27=3*9 \,.$$• Of course. Thanks. – Natim Jan 29 '14 at 17:43 There is no missing dollar. \$30 - \$5 = \$25 paid to the barman. \$2 tip +$3*\$1$ = remaining \\$5.