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There were 150 children at the track meet. 50% of the children were boys. When more boys arrived later, the percentage of girls decreased to 20%. How many boys arrived later?

 Apr 20, 2021
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original:

150 total

75 boys

75 girls

 

later:

75 girls is 20%

Total = 75*5 = 375

Boys = 375-75 = 300

 

Hope this helped. :))

=^._.^=

 Apr 20, 2021

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