@Priya: Consider one of the squares in the grid. It has an area of 4 square inches. If the coin lands so that its center is within 1/2 inch of any grid line, the coin will touch the line. The area of the region within 1/2 inch of the boundary is 3 square inches. Therefore, 3/4 of the time the coin will touch a grid line, leaving 1/4 as the probability of not touching any of the grid lines.
Dave On Aug 19, 11:50 am, priya ramesh <[email protected]> wrote: > A 1 inch diameter coin is thrown on a table covered with a grid of lines two > inches apart. What is the probability the coin lands in a square without > touching any of the lines of the grid? -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
