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Mathematics, 09.02.2021 01:00 ykluhredd

In a school, 55% of the pupils are boys. Out of the boys, the ratio of those with black, brown and blonde hair is 4:4: 2.
What percentage of the pupils are boys that do not have blonde hair?
%

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In a school, 55% of the pupils are boys. Out of the boys, the ratio of those with black, brown and...
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