Question

the student of class are madeto stand in rows. If 3 students are extra in a row, there would be 1 row less. If 3 students are less in a row then there would be 2 rows more. Find the number of students in class

Answer 1

Answer:

36

Explanation:

let, no of rows x

student per row y

so, total students xy

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

→ 3x-y-3=0..................i

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

→2y-3x-6=0...............ii

solving i & ii

x=4,y=9

total students= 4*9=36