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1. |
The ratio of the numbers of boys and girls in a school was 5 : 3. Some new boys and girls were admitted to the school, in the ratio 5 : 7. At this, the total number of students in the school became 1200, and the ratio of boys to girls changed to 7 : 5. The number of students in the school before new admissions was |
A. | 700 |
B. | 720 |
C. | 900 |
D. | 960 |
Answer» E. | |