Two sisters each open IRAs in 2011 and plan to invest $3,000 per year

Two sisters each open IRAs in 2011 and plan to invest $3,000 per year for the next 30 years. Mary
makes her first deposit on January 1, 2011, and will make all future deposits on the first day of the
year.

Jane makes her first deposit on December 31, 2011, and will continue to make her annual
deposits on the last day of each year. At the end of 30 years, the difference in the value of the IRAs
(rounded to the nearest dollar), assuming an interest rate of 7% per year, will be
A) $19,837. B) $6,300. C) $12,456. D) $210.

ANSWER

A