Mathematics · Ratio and Proportion

The students in three classes are in the ratio 2 : 3 : 5. If 10 students are increased in each class, the ratio changes to 4 : 5 : 7. Find the total number of students before the increase.

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The students in three classes are in the ratio 2 : 3 : 5. If 10 students are increased in each class, the ratio changes to 4 : 5 : 7. Find the total number of students before the increase.

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The students in three classes are in the ratio 2 : 3 : 5. If 10 students are increased in each class, the ratio changes to 4 : 5 : 7. Find the total number of students before the increase.

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