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In a school there are 158 students. Although there are more girls than boys, only 1/11 of the girls wear glasses, while 1/7 of the boys wear them. How many boys and how many girls are in the school?
Question
#23203. Asked by Kilroy. (Oct 13 02 5:25 PM)
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Tabby Tom
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The number of girls must be more than half of 158, i.e. at least 80. So we need a number greater than 80 which is divisible by 11, and a number smaller than 80 which is divisible by 7, and these numbers must add up to 158. So we have 88 girls and 70 boys (of whom 8 girls and 10 boys wear glasses).
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Kilroy
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Congratulations TT your answer is correct...see if you can answer the other three.
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