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Question 765257: Hi, I really need some help with this question.
A town's population ratio of males : females is 49:51. If the town has a current population of 17,600, estimate the increase in males and females in 10 years time if the population is expected to increase by 30%.
This is Ratio of a Quantity Question.
Thanks
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A town's population ratio of males : females is 49:51. If the town has a current population of 17,600, estimate the increase in males and females in 10 years time if the population is expected to increase by 30%.
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Equation:
49x + 51x = 17,600 where 49x is the # of males and 51x the # of females
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100x = 17,500
x = 175
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# of males is 49*175 = 8575
# of females is 51*175 = 8925
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New Population:
1.3*17,600 = 22880
49x+51x = 22880
100x = 22880
x = 228.8
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# of males will be 49*228.8 = 11211 when rounded down
Increase = 11211-8575 = 2636
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# of females will be 51*228.8 = 11669 when rounded up
Increase = 11669-8925 = 2744
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Cheers,
Stan H.
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