The demographic dividend is the economic growth potential that results from a shifting population age structure, with a substantial portion of the population in the working-age group of 15 to 64 years, as opposed to the non-working-age population of 14 to 65 years.
Ajay buys an old desktop for Rs. 6200 and spends Rs. 400 on its repairs. If he sells the desktop for Rs. 7000, his gain percent is