Where is the lost dollar? [duplicate]
Solution 1:
True $3*9=27$.
But they paid $25\$$ and gave $2 \$ $ tip. And
$$25+2=27=3*9 \,.$$
Solution 2:
There is no missing dollar.
\$30 - \$5 = \$25 paid to the barman. \$2 tip + $3*\$1$ = remaining \$5.
True $3*9=27$.
But they paid $25\$$ and gave $2 \$ $ tip. And
$$25+2=27=3*9 \,.$$
There is no missing dollar.
\$30 - \$5 = \$25 paid to the barman. \$2 tip + $3*\$1$ = remaining \$5.