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

A

2500

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B

3000

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C

2000

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D

3500

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Solution

The correct option is A 2500
x is population of male
$∴ (5500 - x) i s f e m a l e p o p u l a t i o n$

$\frac{x \times 111}{100} + \frac{(5500 - x) \times 120}{100} = 6330$

On calculating we get x = 3000
So female population = 2500.

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