priyankamahato507 Asked: December 2022 a boy weighing 350n climbs 30 steps each 20 cm high calculate the work done by a boy
priyankamahato507 Asked: December 2022 the SP and CP of a article differs by 250rs . If the profit is 8% find the cp and sp of the
priyankamahato507 Asked: December 2022 A man sells a book at a profit of 20%. . If he had brought it at 20% less and sold it for
priyankamahato507 Asked: December 2022 what is meant by chemical reaction elobrate the different types of chemical reaction