Question

In a class of 60, where girls are twice that of boys, Gopu ranked seventeenth from the top. If there are 9 girls ahead of Gopu, how many boys are after him in rank?

• A. 12
• B. 23
• C. 3
• D. 7

Answer 1

Answer:

A. 12

Total number of students = 60 GIRLS : BOYS = 2 : 1 = 2X : 1X 3X = 60 X = 60/3 = 20 No. of girls = 40 No. of boys = 20 Gopu is 17th from top there are 9 girls ahead of gopu Total girls behind gopu = 40 - 9 = 31 Total students behind gopu = 60 - 17 - 43 Number of boys after Gopu = 43 - 31 = 12