Case Study - 1 Yoga is an ancient practice which is a form of meditation and exercise. By practising yoga, we not even make our body healthy but also achieve inner peace and calmness. The International Yoga Day is celebrated on $21^{\text{st}}$ of June every year since 2015.To promote Yoga, Green park society in Pune organised a 7-day Yoga camp in their society. The number of people of different age groups who enrolled for this camp is given as follows :Based on the above, find the following :(a) Find the median age of people enrolled for the camp.(b) If $x$ more people of age group $65-75$ had enrolled for the camp, the mean age would have been 58 . Find the value of $x$.