Zintle decides to join a stokvel to save for her son's education when he leaves school.She joins the stokvel in January of his grade 1 year and has to pay R300.00 monthly. The stokvel payments increase by R50.00 each year.If there are 12 people in the stokvel and Zintle is paid in December, how much will she have saved at the end of 12 years , assuming that she does not spend any of her stokvel payments?