If price of an article decreases from Rs P1 to Rs 190, when quantity demanded increases from 5000 units to 5200 units, and if point elasticity of demand is -0.8 find P1?
______________ scheme launched by the Central Government aims to cover all those children by 2020 who are either unvaccinated, or are partially vaccinated against seven vaccine preventable diseases.
The method of soil conservation in which ploughing is done parallel to the contours of a hill slope to form a natural barrier for water to flow down the slop is called?