Re: [algogeeks] Re: probability! tough one to crack!
a wonderful explaination divye!! thank you so much :) :) -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: probability! tough one to crack!
@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 love.for.programm...@gmail.com 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 algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: probability! tough one to crack!
@Dave : me too didnt get the meaning you want to convey, plz throw some light. Sanjay Kumar B.Tech Final Year Department of Computer Engineering National Institute of Technology Kurukshetra Kurukshetra - 136119 Haryana, India On Fri, Aug 19, 2011 at 10:09 AM, priya ramesh love.for.programm...@gmail.com wrote: @dave: You are great!! The ans is indeed 1/4. I dint understand this sentence... The area of the region within 1/2 inch of the boundary is 3 square inches. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: probability! tough one to crack!
The requirements will be satisfied if the centre of the coin is such that the coin just touches the square. This is possible only when the centre of coin is in a smaller square of 1 inch side. Hence the result. On Fri, Aug 19, 2011 at 10:41 PM, Sanjay Rajpal srn...@gmail.com wrote: @Dave : me too didnt get the meaning you want to convey, plz throw some light. Sanjay Kumar B.Tech Final Year Department of Computer Engineering National Institute of Technology Kurukshetra Kurukshetra - 136119 Haryana, India On Fri, Aug 19, 2011 at 10:09 AM, priya ramesh love.for.programm...@gmail.com wrote: @dave: You are great!! The ans is indeed 1/4. I dint understand this sentence... The area of the region within 1/2 inch of the boundary is 3 square inches. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Romil -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: probability! tough one to crack!
why this sentence?? 3/4 of the time the coin will touch a grid line?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: probability! tough one to crack!
got it. Sanju :) On Fri, Aug 19, 2011 at 10:25 AM, Romil ... vamosro...@gmail.comwrote: Because this is the answer. Rest of the times it will not touch any of the grid lines. On Fri, Aug 19, 2011 at 10:50 PM, priya ramesh love.for.programm...@gmail.com wrote: why this sentence?? 3/4 of the time the coin will touch a grid line?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Romil -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: probability! tough one to crack!
For those of you who want an explanation of Dave's answer, please refer to the diagram below. | 0.5 in |-| 0.5 in | xxx - xxx 0.5 in xxx - xx...xx | xx...xx | xx...xx | xx...xx | xxx - xxx 0.5 in xxx - Since the radius of the coin is 0.5 in, if the center of the coin falls in the x area, it will cross a grid line. So, probability of the coin not crossing the grid lines is area of dots / area of square = (1 inch square / 4 inch square) = 1/4 -- DK http://www.divye.in http://twitter.com/divyekapoor http://gplus.to/divyekapoor -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/osMGCscKC70J. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: probability! tough one to crack!
GOOD one dave and thanks divye for a wonderful explanation On Fri, Aug 19, 2011 at 11:44 PM, DK divyekap...@gmail.com wrote: For those of you who want an explanation of Dave's answer, please refer to the diagram below. | 0.5 in |-| 0.5 in | xxx - xxx 0.5 in xxx - xx...xx | xx...xx | xx...xx | xx...xx | xxx - xxx 0.5 in xxx - Since the radius of the coin is 0.5 in, if the center of the coin falls in the x area, it will cross a grid line. So, probability of the coin not crossing the grid lines is area of dots / area of square = (1 inch square / 4 inch square) = 1/4 -- DK http://www.divye.in http://twitter.com/divyekapoor http://gplus.to/divyekapoor -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/osMGCscKC70J. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- **Regards SAGAR PAREEK COMPUTER SCIENCE AND ENGINEERING NIT ALLAHABAD -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
