Question

Due to more demand of ball pen, its price increases by 50 paisa every year, whereas due to less demand of fountain pen, its price remains fixed every year. If in 2011, the price of a ball pen was Rs. 8 and that of a fountain pen was Rs.12, then in which yearwill the cost of a ball pen be equal to that of a fountain pen?

Answer 1

Answer:

in 2019 this is right answer