When a pure bred, red flower -producing plant of genotype RR is crossed with  pure bred , white flowers-producing plant of genotype rr,all $F_1$ plants produced pink flowers If all plant in each generation from $F_1$ to$F_6$ are selfed, what will be percentage of plants with red and white flowers in final population of plants with red and white flowers in final population consisting of a large number of individuals? (Consider that flowers colour has no effect on reproduction and survival.)