if the ratio of boy is to girl is 7:5 no of children is 1440 if 40 boys were added how many girls to be added to get the ratio 4:3
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Let the common factor be x
Thus 7x + 5x = 1440
12x = 1440
x = 1440/12
x = 120
Therefore no of boys = 7x = 120*7 = 840
Therefore no of girls = 5x = 5*120 = 600
Thus 7x + 5x = 1440
12x = 1440
x = 1440/12
x = 120
Therefore no of boys = 7x = 120*7 = 840
Therefore no of girls = 5x = 5*120 = 600
mahesh197:
But what abt the next part
Sorry not able to solve
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