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The population of a village is 5500. If the number of males increase by 11% and the number of females increases by 20 %, then the population becomes 6330. Find the population of females in the town

Question

The population of a village is 5500. If the number of males increase by 11% and the number of females increases by 20 %, then the population becomes 6330. Find the population of females in the town

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Solution

Let's denote the number of males in the village as M and the number of females as F. We know from the problem that:

M + F = 5500 (1) (This is the total population of the village)

After the increase, the population becomes 6330. The number of males increased by 11% and the number of females increased by 20%. This gives us a second equation:

1.11M + 1.2F = 6330 (2) (This is the new total population after the increase)

Now we have a system of two equations, and we can solve it step by step.

First, let's express M from the first equation:

M = 5500 - F (3)

Now we can substitute equation (3) into equation (2):

1.11*(5500 - F) + 1.2F = 6330 6055 - 1.11F + 1.2F = 6330 0.09F = 275 F = 275 / 0.09 F = 3055.56

Since the population must be a whole number, we round it to the nearest whole number, so the number of females in the village is approximately 3056.

This problem has been solved

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