Problem 68 : Arithmetic and Geometric Progressions
Problem 68 : Arithmetic and Geometric Progressions
A person proposes to give aims to begger 1 nP. On the first day, 2nP. On the second day, 4 nP, on the third day, 8nP, on the fourth day and so on. How much does he need to pay in the month of February, 1972?