James binges on Cheezits and eats 3 bags that are 2 ounces each. There are 150 calories in an ounce of Cheezits. He then goes for a 40-minute run and burns 12 calories per minute. How many excess calories did he eat?
Reason slowly and give your answer.
420
He ate 2 * 3 = 6 ounces of cheez its.

That means he ate 6 * 150 = 900 calories.

He burned 40 * 12 = 480 calories.

So he ate an excess of 900 - 480 = 420 calories.

.

The answer: 420