£100
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Math Lessons.... the History
1. Teaching maths in 1970 A logger sells a truckload of timber for £100. His cost of production is 4/5 of the price. What is his profit? 2. Teaching Maths In 1980 A logger sells a truckload of timber for £100. His cost of production is 80% of the price. What is his profit? 3. Teaching Maths In...