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If 35% of the population are men and 40% are women, then 25% of the population are children. We know that the number of children is 20,000, so the total population of the town is 80,000.

The number of women in the town is 40% of the total population, or 32,000.

Here's the solution in equation form: Total population = 80,000
Children = 20,000
Men = 35% of total population = 0.35 * 80,000 = 28,000
Women = 40% of total population = 0.4 * 80,000 = 32,000