The 106th Indian Science Congress 2019 will held in Lovely Professional University in Jalandhar, Punjab from 3rd January 2019 to 7th January 2019. PM Narendra Modi is going to inaugarate this.
The mean of 21 observations (all different) is 40. If each observation greater than the median is increased by 21, then the mean of observations will become:
The distance around a figure is called as Perimeter of that figure. For example, rectangle perimeter is 2(L+B) and where as perimeter of square is '4S'.