in a city 30%are males,45% are females and remaining are children. the population of city is 80000. find the number of children .
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30% are males
30/100*80000
24000
no of males=24000
45% are females
45/100*80000
36000
no of female=36000
so the total no children=(24000+36000)
=60000
= 80000-60000
=20000
elizakb:
amina buys a book for Rs.275 and sells it a loss 20%. how much does he sells it for..
100-loss%/100×c.p
use this formula
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