Question

the boys and girls in a college are in the ratio3:2 if 20% of the boys and 25%of the girls are adult the percentage of the students who are minor is:​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

let total students will be 100 divide it in 3:2 =60/40

20 % 60=12 boys adult

25 % 40= 10girls adults

total adults = 22

no of students =100

100-22=78

78% are non adult

or

let 3x and 2x be the no. of boys and girls than we get total students 5x now

20% of boys and 50% of girls are adult than we get total=5x- (20% of 3x + 50% of 2x) =1.1x

1.1x*100/5x=22%(total adults)

total non adults will be 78%