Question

10 of 10
calories used per hour

activity	calories	activity	calories
studying	105	washing dishes	180
eating	125	playing table tennis	230
typing	140	lifting weights	500
lying down	75	standing	125
slow walking	225	fast walking	300
biking	900	jogging	550

which activity used more calories 4 hours of fast walking or 12 hours of sitting in class?
sitting in class
fast walking
both activities used the same amount of calories
none of the above

Explanation:

Step1: Calculate calories for sitting in class

Calories per hour for sitting in class is 100. For 12 hours, the total calories used is $100\times12 = 1200$.

Step2: Calculate calories for fast - walking

Calories per hour for fast walking is 300. For 4 hours, the total calories used is $300\times4=1200$.

Answer:

Both activities used the same amount of calories