In a town 40% are men and 35% are women .20000 are no.of childrens .then how many no.of men in this town?

Let us assume- M represents 40% of the population, W represents 35%, and C represents 20000 (children).

So, we can write the following equations:
M = 40% of Total Population W = 35% of Total Population C = 20000

Now, we can use these equations to find the total population:
Total Population = M + W + C = (40% of Total Population) + (35% of Total Population) + 20000
First, convert the percentages to decimals (40% = 0.40 and 35% = 0.35):
Total Population = 0.40(Total Population) + 0.35(Total Population) + 20000

Now, solve for Total Population:
Total Population = (0.40 + 0.35) * Total Population + 20000 Total Population = 0.75 * Total Population + 20000

Now, isolate Total Population:
0.25 * Total Population = 20000
Total Population = 20000 / 0.25 Total Population = 80,000

Now that we have the total population, we can find the number of men:
M = 40% of Total Population M = 0.40 * 80,000 M = 32,000

So, there are 32,000 men in the town.