Question

$Rs.3900.00$ has been distributed among the students (girls/boys) in a class in such a way that the girl student should get $Rs.80.00$ and boy should get $Rs.30.00$. The number of girl students in the class will be

• A. $60$
• B. $40$
• C. $39$
• D. $30$

Answer 1

The correct option is C $39$

Let the number of girl students in the class be $x$.
$\therefore$ No of boy students $=(65-x)$
$\because 80x+30(65-x)=3900$
$\Rightarrow 80x+1950-30x=3900$
$\Rightarrow 50x=1950$
$\therefore x=\frac{1950}{50}$
$=39$