Asked by raja harishchandra

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?
Answered by ok
where did you get this problem?
Answered by Cheater
lol ofc brilliant CHEATER
Answered by ok
I have solved the problem.
Can I answer it on brilliant?
If yes, how?
Answered by not OK
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.
Answered by ok
49/625.
Correct right?
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