At the beginning of last month, a stationery store had in stock 250 writing pads, which had cost the store $0.75 each. During the same month, the store made only one purchase of writing pads. What was the total amount spent by the store on the writing pads it had in stock at the end of the month?

(1) Last month the store purchased 150 writing pads for $0.80 each.
(2) Last month the total revenue from the sale of writing pads was $180.

Answer: E

Source: Official Guide