This is a straightforward Question Answer type discussion focused on one problem related to fitness planning and some variations to it that takes deep into the concept of average and exposes some of the errors people make while using it. Question: Rohan is on a fitness drive. He has planned to burn 300 kcal in one exercise session is Gym. He has been suggested to do warmup, cardio, strength training and cooling. He divided his target kcal into 4 equal parts of 75 kcal each. His fitness tracker displays few data including calorie burnt.  Warmup burns 4 calories per minute, cardio exercise burns 8 kcal per minute, strength exercises 10 kcal per minute and cooling 2 kcal per minute.  How much time he would take in the gym to complete his exercise.  Answer: Since Rohan wants to burn 75 kcal in each of the four parts , calculate the time for each activity separately. Warm-up: Burns 4 kcal/min Time = 75 ÷ 4 = 18.75 minutes (18 min 45 sec) Cardio: Burns 8 kcal/min Time = 75 ÷...

  My fitness app gives me monthly challenge related to exercise each month. In June, the challenge was to complete 3600 minutes of exercise in the month. This averages to 120 minutes/ day as there are 30 days in the month of June. That means, If I do 120 minutes exercise each day of the June month, I total 3600 minutes which is equal to the challenge minutes. Average does this only. If average monthly expense in first 8 months of this year in your family is ₹25000, that means the total expense is ₹25000*8 = ₹200000. It is not necessary that the monthly expense is ₹25000 each month to keep the average same. Expenses may be high in some months and may be low too in some months. If the total expense in 8 months is ₹200000, then the average monthly expense is same ₹25000. Coming back to the exercise challenge. Doing 120 minutes of exercise each day was good enough for the June challenge. But, it's quite uncomfortable to keep doing that each day for 30 days. So, I divided the target of ...