Reverse Percentage or Finding the original quantity Reverse

Reverse Percentage or Finding the original quantity Reverse

Reverse Percentage or Finding the original quantity Reverse Percentage Example: 54% of the adults living on a street own a car. If 162 adults own a car, how many adults live in this street? 54 162 54 54 1

3 x 100 x 100 100 300 Reverse Percentage Example: 65% of the pages in a magazine are coloured. If there are 52 coloured pages, how many pages altogether? 65 52

65 65 1 0.8 x 100 x 100 100 80 Reverse Percentage Example: A bookseller makes 30% on a book and sells it for

9.10. What did she pay originally? 130 130 9.10 130 1 0.07 x 100 x 100 100

7 Reverse Percentage 1) There are 18 soft-centred chocolates in a box. This is 72% of the total. How many in the box altogether? 2) 12.5% of Freds phone calls (9) were not from his friends. How many calls altogether. 3) A second-hand car is priced at 6440. If its value has depreciated by 15%, how much was it worth new? 4) Some trousers were increased by 20% to 36. What was their original cost.

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