Suppose that a government study showed that 90% of urban families remained in an urban area in the next generation (and 10% moved to a rural area), whereas 70% of rural families remained in a rural area in the next generation (and 30% moved to an urban area). This means that if u0 r0 represents the current percents of urban families, u0, and of rural families, r0, then u r = 0.90 0.30 0.10 0.70 u0 r0 represents the percents of urban families, u, and rural families, r, one generation from now. Currently the population is 63% urban and 37% rural. Find the percents in each group one generation before this one.