In a class of 60, where girls are twice that of boys, Kamal ranked 17th from the top. If there are 9 girls ahead of Kamal, how many boys are after him in rank?
- 10
- 12
- 26
- 30
Explanation
Total students in class = 60
Girls: Boys = 2:1
Actual Girls: Boys = 40: 20
Kamal is 17th from top.
9 girls are ahead of Kamal.
Total girls given = 40
So total girls behind Kamal = 40 - 9 = 31
Total students behind Kamal = 60-17 = 43 (Because Kamal is 17th from top)
Number of boys after Kamal = 43 - 31 = 12
Hence, there are 12 boys after Kamal.
Thus, the correct answer is 12.
ND-21-5-2023
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