Eight workers are needed to bring in the grape harvest. Algebra or trial and error can be used effectively to find the answer. One solution would be to start with x workers. The big field then needs x workers for one day and x2 workers for one day, making x+x2 worker-days. The small field needs x2+2 worker-days. This leads to the equation 3x2=2(x2+2) and the solution x=8.
For information about next year's competition, contact Brian Connelly, North Lanarkshire Council, Coat-bridge ML5 3BT, tel: 01236 812226.