Friday, August 12, 2011

Problem solving and Math question 4 Very long math problem! Please help Thank you?

Draw a diagram on some grid paper, or make your own grid (the simplest way is to draw the forest as a rectangle 13 units up and down and 14 units left to right). Make sure you mark which side is North, East, South, and West. Then find their position on the grid (they should always be on the lines of the grid, never the spaces between lines). Then, start drawing a line from that point marking their movements, including direction changes. When the line goes outside the grid, then they have exited the forest. Count how far they traveled on the grid (1 unit on grid = 1 mile if you followed my suggestion above). That gives you the distance. Distance multiplied by speed gives you time traveled. 1 mile is equal to 5,280 feet, and 1 yard is equal to 3 feet. Divide the distance in yards by the frequency of their peanut dropping (1 per 100 yards) and that is the number of peanuts dropped. You can calculate the number of full bags of peanuts left using the total number of peanuts dropped using simple arithmetic.

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