2009 · Q78
Students of a class are made to stand in rows. If one student is extra in a row, there would be two rows less. If one student is less is n a row, there would be three rows more. What is the number of students in the class?
Elementary MathematicsAlgebra
- A65
- B55
- C60
- D50
Explanation
r−2s=2, −r+3s=3 gives 60 students.