Teaching Maths

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 1990  A logger sells a truckload of timber for £100.   His cost of production is £80.   How much was his profit?    4. Teaching Maths In 2000  A logger sells a truckload of timber for £100.   His cost of production is £80 and his profit is £20.   Your assignment: Underline the number 20.    5. Teaching Maths In 2005  A logger cuts down a beautiful forest because he is selfish and inconsiderate and cares nothing for the habit of animals or the preservation of our woodlands. Your assignment:  Discuss how the birds and squirrels might feel as the logger cut down their homes just for a measly profit of £20.    6. Teaching Maths In 2009   A logger is arrested for trying to cut down a tree in case it may be offensive to Muslims or other religious groups not consulted in the felling licence. He is also fined a £100 as his chainsaw is in breach of Health and Safety legislation as it deemed too dangerous and could cut something. He has used the chainsaw for over 20 years without incident however he does not have the correct certificate of competence and is therefore considered to be a recidivist and habitual criminal. His DNA is sampled and his details circulated throughout all government agencies. He protests and is taken to court and fined another £100 because he is such an easy target. When he is released he returns to find Gypsies have cut down half his wood to build a camp on his land.  He tries to throw them off but is arrested, prosecuted for harassing an ethnic minority, imprisoned and fined a further £100.  While he is in jail the Gypsies cut down the rest of his wood and sell it on the black market for £100 cash.  They also have a leaving BBQ of squirrel and pheasant and depart leaving behind several tonnes of rubbish and asbestos sheeting. The forester on release is warned that failure to clear the fly tipped rubbish immediately at his own cost is an offence. He complains and is arrested for environmental pollution, breach of the peace and invoiced £12,000 plus VAT for safe disposal costs by a regulated government contractor.     Your assignment:  How many times is the logger going to have to be arrested and fined before he realises that he is never going to make £20 profit by hard work, give up, sign onto the dole and live off the state for the rest of his life?    7 . Teaching Maths 2017     أ المسجل تبيع حموله شاحنة من الخشب من اجل 100 دولار. صاحب تكلفة الانتاج من  الثمن. ما هو الربح له؟