Posted by **raja harishchandra** on Thursday, June 13, 2013 at 1:54am.

Consider a 25×25 grid of city streets. Let S be the points of intersection of the streets, and let P be the set of paths from the bottom left corner to the top right corner of which consist of only walking to the right and up. A point s is chosen uniformly at random from S and then a path p is chosen uniformly at random from P. Over all (s,p) pairs, the probability that the point s is contained in the path p can be expressed as a/b where a and b are coprime positive integers. What is the value of a+b?

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**raja harishchandra**, Thursday, June 13, 2013 at 2:00am
please answer its urgent

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**ok**, Thursday, June 13, 2013 at 4:25am
Give me a link to this problem?

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**raja harishchandra**, Thursday, June 13, 2013 at 5:33am
it is of brilliant named site

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**ok**, Thursday, June 13, 2013 at 7:33am
GIVE A LINK TO THE PROBLEM?

AND SHOULD NOT YOU SOLVE IT ON YOUR OWN?

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**Anonymous**, Thursday, June 13, 2013 at 9:57pm
to ok. if you want to answer this on the site brilliant, you can by making an account but unfortunately, in every account, they have different sets of question basing on the level what you are in. this is such a very easy question.

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**ok**, Friday, June 14, 2013 at 6:37am
but I found that you can share links once you solve the problem.

Can I have your link, please?

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**ok**, Friday, June 14, 2013 at 3:23pm
I think 49/625

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**pappu raja **, Friday, June 21, 2013 at 6:15am
Arnav thuje koi answer nahi bataye ga mat try kar

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