Study the following information carefully to answer the given questions The total population of three villages A, B and C together is 80,000 and the ratio of their population is `5:4:7`. Out of the total population of village A, the age of `16%`of villagers is equal to 61 years or more the age of `36%` of villagers is equal to or more than 31 years but less than 61 years and the age of the remaining villagers is less than 31 years. Out of the total population of village B, the age of one- fifth of villagers is equal to 61 years or more. The age of `12/25` of the remaining villagers is equal to or more than 31 years but less than 61 years and the age of the remaining villagers is less than 31 years In village C, the number of villagers whose age is equal to 61 years or more is `50%` more than the difference between the number of villagers in village A whose age is less than31 years and that in village B. The number of villagers whose age is equal to or more than 31 years but less than 61 years is `80%` more than that in village A in the same age group. The age of the remaining villagers is less than 31 years What is the average population of the three villages whose age is less than 31 years?