Download now India's Best Exam Prepration App
Class 9-10, JEE & NEET
|Video Lectures||Live Sessions|
|Previous Year Paper||Revision|
There are two examination rooms A and B. If 10 candidates are sent from A to B, the number of students in each room is same. If 20 candidates are sent from B to A, the number of students in A is double the number of students in B. Find the number of students in each room.
$x-2 y+60=0 \cdots(i i)$
By subtracting the equation $(i)$ from $(i i)$ we get, $y=80$
Substituting $y=80$ in equation $(i)$, we get
Hence 100 candidates are in A examination Room,
80 candidates are in B examination Room.