Fishin' Poles

A father and son go to a sporting goods store and they buy two identical fishing poles together. They are charged $42 before tax. They were overcharged $16. One fishing pole rang up at the correct price, $13. What was the incorrect price of the other one? The correct answer is twenty-nine dollars. However, what the customer service employee did not understand at first is that they had been reimbursed the $16 before receiving two more fishing poles for the holidays. So, then, when they brought back those first two fishing poles, they were entitled to a refund of $26 before taxes. Phew! What a dream!