Exercisé 4.8 1. Coins are arranged in piles. The first pile contains six coins and each successive pile contains two more coins than the previous one. a) How many coins will the 20th pile contain? b) How many coins will there be in the first 50 piles? c) What pile will contain 300 coins? 2. In a competition, the prize money is divided as follows. The person in tenth place gets N2 500 and every other prize winner gets N1 500 more than the person who finished just after them. Prizes are awarded for the

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