Sam plans to invest in share market for a period of 2 years. He buys 10 shares of FNB worth N$ 250.00 each a the beginning first year, 5 shares of BW worth N$ 300.00 each at the beginning of second year. At the end of each year he receives N$ 10.00 per share as dividend for the FNB shares and N$ 15.00 per share for the BW shares. At the end of second year, he sells all his FNB shares at the rate of N$ 325 per share and BW shares at the rate N$ 400 per share. What is the money weighted rate of return of his investment?