#### A trader buys x articles for a total cost of Rs. 600.

(i) Write down the cost of one article in terms of x. If the cost per article were Rs. 5 more, the number of articles that can be bought for Rs. 600 would be four less.

(ii) Write down the equation in x for the above situation and solve it to find x. (1999)

**Solution:**

#### A shopkeeper buys a certain number of books for Rs 960. If the cost per book was Rs 8 less, the number of books that could be bought for Rs 960 would be 4 more. Taking the original cost of each book to be Rs x, write an equation in x and solve it to find the original cost of each book.

**Solution:**

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