A worker earns $24 on the first day and spends $18 on the second day. The worker earns $24 on the third day and spends $18 on the fourth day. If this pattern continues, on which day will the worker first reach a net total of $48?  Choose the correct choice from the following answers.
A) 6 B) 7 C) 9 D) 12 E) 16
Every two days, the net total is $6.   After 8 days, the worker will have $24.   On day 9, the worker will receive $24 for a net total of $48.   The answer is 9.
<result>C</result>
A worker earns $24 on the first day and spends $18 on the second day. The worker earns $24 on the third day and spends $18 on the fourth day. If this pattern continues, on which day will the worker first reach a net total of $48?