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2016-03-13T20:33:23+05:30
the age composition of a population refers to the number of people in different age groups in a country.
there are 3 parts :
I) children (below 15 years)
II) working age (15-59 years)
III) aged (above 59 years)

i hope it helps.................. 
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2016-03-13T20:50:28+05:30