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In a class of 60 students where girls are twice that of boys, Laxmi ranked 27th from the top. If there are 9 boys ahead of Laxmi, how many girls are after her rank ?

Correct Answer: 22

Explanation:

Given number of girls are twice that of boys.


--> G=2B and G+B = 60 


Therefore,  G=40 and B= 20


Given Laxmi ranked 27th from the top and 9 boys are ahead of Laxmi.


Therefore, There are 17 girls ahead of Laxmi. 


Therefore, Number of girls who ranked after Laxmi = 40 - (17+1) = 22.


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