Question

the student of a class ate made to stand in rows.if 3student are extra in a row ,there would be 1 row less.if 3student are less in a row ,there would be 2rows more .find the number of students in the class.

question of class 10of linear equation

Answer 1

students in a row be x

Roes be y

Total be xy

(x+3)(y-1)=xy

(x-3)(y+2)=xy

Solving this we get