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There are 18 girls in a class.If this number is 3/7 parts of the total number of students in the class .Find the number of students in class



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3/7 = girls, 4/7 = boys

If 3/7 = 18
then 1/7 = 6 students (18/3)

4/7 = 6 x 4 = 24 boys

total number of students :
24 boys + 18 girls = 42 students
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