Question

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

• A. $3$
• B. $7$
• C. $12$
• D. $23$

Answer 1

Answer: (C)

$12$

Let the no. of boys $=x$
Let the no. of girls $=2x$
According to question
$x+2x=60$
$\Rightarrow$ $x=20$
Boys $=20$
Girls $=40$
If Kamal is at Seventeenth position and $9$ girls are ahead of him then out of $16$ people standing ahead of him, seven are boys. Therefore, there are $12$ boys are after him in a rank.
Hence, option 'C' is correct.