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In a school the ratio of boys to girls is 3 : 7. If there are 150 boys and girls in the school, how many boys are there?
গণিত Ratio, Proportion and Partnership 07 Oct, 2020
প্রশ্ন In a school the ratio of boys to girls is 3 : 7. If there are 150 boys and girls in the school, how many boys are there?
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