on a certain day 2/7 of the students in a class of 42 were absent. How many students were
present in the class that day?
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2
If 2/7 were absent, then 1- (2/7) = 5/7 were present.
So,
Total students = 42, present = 5/7 × 42 = 30 students.
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8
Answer:
30 students were present on that day
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