A) 3
B) 7
C) 12
D) 23
Correct Answer: C
Solution :
Let the number of boys be x. Then, number of girls = 2x. \[\therefore \] \[x+2x=60\] or \[3x=60\] or \[x=20\]. So, number of boys = 20 and number of girls = 40. Number of students behind Kamal in rank \[(60-17)=43.\] Number of girls ahead of Kamal in rank = 9. Number of girls behind Kamal in rank \[=(40-9)=31\] \[\therefore \] Number of boys behind Kamal in rank \[=(43-31)=12.\]You need to login to perform this action.
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