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In class ‘C’, the number of girls is 25% more than that of boys while in class ‘D’ the number of girls is 40% more than that of boys. If the total number of students in class ‘C’ and ‘D’ is 360 and 420, respectively, then find the difference between the number of girls in classes ‘C’ and ‘D’.

A 45

B 24

C 40

D 24

E None of these

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