Here the question that i hope to get some help on...

After 10½ years of contributions of $2,000 at the end of every six (6) months to an RRSP, the accumulated amount stood at $65,727.82. What semi-annually compounded nominal rate and equivalent compounded monthly rate of return were earned by the funds in the RRSP?

Using my calculator I got this far...

0 PV

21 N

-2,000 PMT

65,727.82 FV

COMP

I

4.2507

4.2507 would be the periodic monthly rate, correct?

thanks,