Pete works at three part-time jobs to make extra money. What are his average earnings per hour?
1) Pete earned $500 for 20 hours at the first job, $150 for 10 hours at the second job, and $100 for 5 hours at the third job
2) Pete an average of $25 per hour at the first job, $15 per hour at the second job, and $20 per hour at the third job
The OA is A
Source: Princeton Review