Question

If you tend to be one of those people who taps their foot, picks their nails, drums their fingers, or moves around in their seat, there may be some good news. Although your fidgeting may be annoying to others, researches at the National Institute of Health reports that one of these habits can burn as much as 800 calories per day. If you want to lose weight, this might help.
For someone who fidgets as above, how many calories per hour are burned up? Assume the person sleeps 8 hours per day, and doesn't fidget while asleep.

Answer 1

If 4 is added to twice a number and this sum is multiplied by 2, the result is the same as if the multiped by 3 and 4 is added to the product.

Answer 2

16 hours per day are available for fidgeting.
800/16 = __ per hour

Answer 3

12