Question

If you begin an exercise program and burn 5 cal per minute by walking how many hours of walking per day would you have to do in two weeks to lose 5 pounds you must burn an extra 3500 cal to lose 1 pound of body weight

Answer 1

Answer:

4.2 hours

Explanation:

For losing 1 pound of weight 3500 calories need to be burnt.

So, for losing 5 pounds of weight the total amount of calories that need to be burnt = 3500 × 5 = 17500 calories.

It has been given in the question that you have to lose 5 pounds = 17500 calories in two weeks.

So daily target of losing weight = $\frac{17500}{14}$ = 1250 calories.

Now,

Since 5 calories are burnt by 1 minute of exercise

So, duration of exercise to burn 1250 calories will be = $\frac{1}{5} \times 1250$ = 250 minutes.

So the duration of daily exercise in hours = $\frac{250}{60}$ = 4.2 hours

Answer 2

The number of hours of walking per day is 4.2 hours.

Calculation of the number of hours:

Since here in two weeks to lose 5 pounds you must burn an extra 3500 cal to lose 1 pound of body weight

So,

for 5 pounds, the total calories should be = 3500 *  5 = 17500

Since there is 14 weeks so

per day it is

= 17500 / 14

= 1250 calories

now the duration should be

= 1250 * 1/ 5 * 1/60

= 4.2 hours

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