Last year there were 610 boys in a school. The number decreased by 20 percent this year. How many girls are there in the school if the number of girls is 175 percent of the total number of boys in the school this year ?
Present population of boys = $$\frac{80}{100} \times 610$$ = 488
=> Number of girls = $$\frac{175}{100} \times 488$$
= $$7 \times 122$$ = 854
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