Bunuel
During July, a mail-order retailer received 3300 orders for amounts less than $100, and 1100 orders for amounts greater than $100. What was the average size of an order in July?
(1) The gross sales from the orders for amounts less than $100 equaled the gross sales from the orders for amounts greater than $100
(2) The orders for amounts less than $100 accounted for $ 134 000 in gross sales
From Question we learn that there are 4400 products, 3300 sold below 100 and 1100 sold above 100, let the price of the products be x and y resp.
St 1. It tells us that the total sales is equal for both the category of products ie., 1100(x) = 3300(y)
InsufficientSt 2. It tells about only one particular category of product
InsufficientCombined together we know both sales are equal and also we have the total number of products.
Therefore, (134000+134000)/4400 which can get the avg.