Dear office mates, I have just bought coffee online. It will be here in a couple of days. Here's the deal. I bought 10 pounds of coffee for $96. It's all very decent coffee, including 6 pounds of the Lavazza Grand Espresso that we all liked so much. That works out to about 650 servings at 15 cents each. Now, up to this point, we have all consumed a total of 670 coffees, according to the coffee machine. So, to estimate how much you should pay me, multiply the number of coffees you think you've had so far by 15 cents. That way, we'll be set for a long time to come. Ivan