A worker's daily wage is increased by 50% and the new wage is $30 per day. What was the worker's daily wage before the increase? Choose the correct choice from the following options:
A) $15
B) $18
C) $20
D) $22
E) $25
Let x be the daily wage before the increase.   1.5x = $30   x = $20   The answer is $20.
<result>C</result>
A worker's daily wage is increased by 50% and the new wage is $30 per day. What was the worker's daily wage before the increase?