Al Dietrich is in training. He swims for 30 minutes, bicycles (10 mph) for 30 minutes, and runs (8 mph) for 30 minutes everyday. How many calories is he burning with this training each day?

Answer: 300 calories

Step-by-step explanation: let us assume that moving at any speed expends approximately 100 calories per mile. Moving a less-minute mile will burn a few more calories than moving a high-minute mile because of the added effort. Since the minutes for the 3 scenarios are the Same, then we can conclude that he is burning calorie at the same level in which the total equal to 300 calories

620

Step-by-step explanation:

(C = Calories)

8 x 20 = 160c

11 x 20 = 220c

12 x 20 = 240c

160 + 220 + 240 = 620 Calories