Question

In class ‘X’, the number of girls is 75% of the number of boys. Class ‘Y’ has 15% less boys than class ‘X’ and 30% more total students than class ‘X’. What is the ratio of girls in class ‘X’ to that in class ‘Y’?

A 7:13
B 10:19
C 9:5
D 3:5
E None of these
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