One day at a school, one -twelfth of the students were absent and 20% of those present went on a field trip. If the number of students staying back in the school that day was 660, how many students are enrolled at that school ?
A. 900
B. 960
C. 1000
D. 1220
E. None of these
সঠিক উত্তরঃ
A.
900
Explanation:
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