Question

There are 9 boys to every 10 girls in a particular high school. there are 2622 students at the school. how many girls are there?

Answer 1

Boys : Girls
  9     :   10

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Find total parts :
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Total Parts = 9 + 10 = 19

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Find 1 Part :
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19 parts = 2622 
1 part = 2622 ÷ 9
1 part = 138

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Find 10 parts (girls) :
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1 part = 138
10 parts = 138 x 10
10 parts = 1380

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Answer: There are 1380 girls.
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