population of a village is 9000 if 6% men and 10% women are added the population will become 9700 number of man in the village is
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Solution:
for men:
we will find men% in population 9700:
9000×[1+6/100]———(1)
9000×53/50————(2)
180×53=9540———(3)
9700-9540=160——men
160×100/9700
160/97=1.6495%men will increase
for women:
we will find women% in population 9700
9000×[1+10/100]———(1)
9000×11/10————(2)
9900————(3)
9900-9700=200——women
200×100/9700
200/97=2.0619%women will increase
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