Last year 28430938 barrels of oil were produced and the profit on each was 0.25 dollars. Multiplying these numbers on the calculator gives the total profit and if you turn the calculator upside down and read the display, it says who made the profit.

Or...2366851 barrels sold with a profit of 3 dollars.

Alumni Liaison

Correspondence Chess Grandmaster and Purdue Alumni

Prof. Dan Fleetwood