1. | 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: |
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Answer: Option C Explanation: Let the number of students in rooms A and B be Then, and Solving (i) and (ii) we get: The required answer A = 100. |

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