Question

In class ‘X’, the number of girls is 60% of the number of boys. Class ‘Y’ has 20% fewer boys than class ‘X’, and the total number of students in class ‘Y’ is 30% more than that in class ‘X’. What is the ratio of number of girls in class ‘X’ to that in class ‘Y’?

Q: Answer-In class ‘X’, the number of girls is 60% of the number of boys. Class ‘Y’ has 20% fewer boys than cl...

ATQ,Let the number of boys in class X 100xThen, number of girls in class X 0.60 100x 60xNumber of boys in class Y 0.80 100x 80xTotal students in class Y 100x 60x 130100 208xNumber of girls in class Y 208x 80x 128xRequired ratio 60x128x 1532

A 7:13

B 15:32

C 9:5

D 3:5

E None of these

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In class ‘X’, the number of girls is 60% of the number of boys. Class ‘Y’ has 20% fewer boys than class ‘X’, and the total number of students in class ‘Y’ is 30% more than that in class ‘X’. What is the ratio of number of girls in class ‘X’ to that in class ‘Y’?

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