If the average adult woman consumes approximately 2,000 kcal per day, how long would she need to run in order to utilize 25 percent of her caloric intake, given that the energy requirement for running is 42,000 j per minute?

Given:
Calorie intake per day = 2,000 kcal
Energy requirement for running = 42,000 J/minute

Note:
1 kcal = 4184 J

Therefore the daily caloric intake is
(2000 kcal)*(4184 J/kcal) = 8.368 x 10⁶ J
25 % of the daily caloric intake is
0.25*(8.368 x 10⁶ J/day) = 2.092 x 10⁶ J

To utilize these calories at a consumption rate of 42,000 J per minute requires
(2.092 x 10⁶ J)/(42,000 J/min) = 49.8 minutes.

49.8 minutes (50 minutes approximately)

The statement is correct because if there is a bunch of noise around you and you are focusing on the noise you will not comprehend your questions and lessons nor will you be able to get the proportion information you need and you will likely spend many more hours on work than normal than if you could ignore the sound

They way i figured it, i got the answer of a. $120,200