Direction: Answer the questions based on the following information.
In the following chart, the price of logs shown is per cubic metre that of plywood and saw timber is per tonne.
If the volume sales of plywood, saw timber and logs were 40%, 30% and 30% respectively, then what was the average realisation in 1993 per cubic metre of sales? (Weight of one cubic metre of saw dust and plywood both = 800 kg)