Question

the boys and girls in the college are in the ratio of 3:2.If 20%of the boys and 25% of girls are adults,than what is the percentage of students who are not adults

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Answer 1

Answer:

Say there are 300 boys and 200 girls

Step-by-step explanation:

so 20% of 300 are adults

ie 60 boys

and

25% of 200 ie 50 girls are adults

meaning that 240+150 are not adults out of total 500

or 390 out of 500

= 78% answer.