A library buys 128 copies of a certain magazine in the first year and then buys half…

MATHEMATICS · Subjective · A Level · Mathematics · Sequences and series · Sequences and series

Problem

A library buys 128 copies of a certain magazine in the first year and then buys half as many copies each succeeding year. After

n

years, the total number of copies purchased becomes 252. Determine the value of

n