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Mathematics, 21.04.2020 02:04 dorindaramirez0531

There were a certain number of students in both class A and class B. After 10% of the students in class A were transferred into class B, the number of students in class B was increased by 20%. If there are 30 students in class B now, how many students were originally in class A?

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There were a certain number of students in both class A and class B. After 10% of the students in cl...
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