80% of the children of a school were girls. how many children would be in the school, if there are 845 boys
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925 will be children
funda:
how
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Heya ☺
Let the total number of children be x. Then,
Number of girls = 80 % of x
= 80/100 × x
= 4x/5
Number of boys = 845
According to question,
4x/5 + 845 = x
=> 4x/5 - x = - 845
=> 4x - 5x/5 = - 845
=> - x/5 = - 845
=> x = - 845 × (-5)
=> x = 4,225
Hence, the total number of students are 4,225.
Thanks
Let the total number of children be x. Then,
Number of girls = 80 % of x
= 80/100 × x
= 4x/5
Number of boys = 845
According to question,
4x/5 + 845 = x
=> 4x/5 - x = - 845
=> 4x - 5x/5 = - 845
=> - x/5 = - 845
=> x = - 845 × (-5)
=> x = 4,225
Hence, the total number of students are 4,225.
Thanks
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