What is happening
You arrive at a village hall laying out chairs for a prize evening.
Forty-two chairs must go out in six equal rows. The caretaker has tried it twice by eye and the back row keeps ending up ragged.
Rows and columnsRunning
Chairs laid out
78chairs
Chairs available
42chairs
Chairs laid out is over by 36 chairs
Area planner. Chairs per row at 13 chairs. Chairs laid out 78 chairs, Chairs available 42 chairs. Currently chairs laid out is over by 36 chairs.
What has to balance