Ratio Word Problems: Problem 4

Problem: A, B, and C are distributing candies among themselves. The original plan to split the candies was in a ratio of 3:4:5. But when distributing, there was a mistake and the ratio was 5:6:7. One person received 15 less candies than the original plan. Who is this person, and how many candies are there in all?

Key: Convert the ratios

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