Difficulty Level: Hard
Stats: 968 / 2,486 ( 38.94% ) got this right

There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:

  • 48
  • 80
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  • 121
  • 125