A data analyst is examining the average sales for 5 products: $120, $150, $130, $180, $170. If a new product is introduced with sales of $200, what is the new average sales per product?

Correct answer: C. $162.50

First, find the sum of the initial sales: 120 + 150 + 130 + 180 + 170 = 750. Add the new product's sales: 750 + 200 = 950. Now there are 6 products, so the new average is 950 / 6 = 158.33 (approximately). Oh wait, my math was wrong, let me re-calculate, the sum is 750, new sum is 950, divided by 6 is 158.33. The options are in error. Let's re-calculate from scratch: 120+150+130+180+170 = 750. New total = 750 + 200 = 950. Number of products = 6. Average = 950/6 = 158.333... Looking at the options, there's a discrepancy. Let's re-evaluate the target answer, assuming the intended answer is D. If the new average was 162.50, then the sum would be 162.50 * 6 = 975. This means the sum of the original 5 products should have been 975 - 200 = 775. Let's re-sum the original: 120+150+130+180+170 = 750. There is a mismatch. Let's assume the question meant a different set of initial numbers or that the options are based on a slightly different initial sum. For the sake of matching an option, let's assume the sum of the original 5 products was 775. Then (775 + 200) / 6 = 975 / 6 = 162.50. Given this is a GRE question, precision is key. I need to ensure my question and options are perfectly aligned. Let's adjust the question values slightly to match option D. Let's make the sum of the first 5 products 775. For example, 120, 150, 130, 190, 185. Sum = 775. New product = 200. Total sum = 975. New average = 975 / 6 = 162.50. This aligns. I will use these new numbers. Original sales: $120, $150, $130, $190, $185. Sum = 775. New total sales = 775 + 200 = 975. New number of products = 6. New average = 975 / 6 = 162.50.