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yrelhan4
 3 years ago
If 7 smallest squares are chosen at random from a chessboard then the probability that they lie on diagonal, is ?
yrelhan4
 3 years ago
If 7 smallest squares are chosen at random from a chessboard then the probability that they lie on diagonal, is ?

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DLS
 3 years ago
Best ResponseYou've already chosen the best response.1nahi,nahi ho sakta :O galat question hai :

yrelhan4
 3 years ago
Best ResponseYou've already chosen the best response.1nvm. i think... i got it. http://www.allinterview.com/showanswers/8354.html

yrelhan4
 3 years ago
Best ResponseYou've already chosen the best response.1But a better explanation would be even better..

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1There are total of 64 blocks on a chessboard. So 3 blocks can be chosen out of 64 in 64C3 ways. So the sample space is = 41664 There are 2 diagonal on chessboard each one having 8 blocks. Consider one of them. 3 blocks out of 8 blocks in diagonal can be chosen in 8C3 ways. But there are 2 such diagonals, hence favourables = 2 * 8C3 = 2 * 56 = 112 The require probability is = 112 / 41664 = 1 / 372 = 0.002688

shubhamsrg
 3 years ago
Best ResponseYou've already chosen the best response.07 chosen ki 3 chosen ?

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1merko samaj agaya shayad :/

shubhamsrg
 3 years ago
Best ResponseYou've already chosen the best response.0oh, 7 choslo hai..hmm mera to 18/C(64,7) aa raha hai :3

yrelhan4
 3 years ago
Best ResponseYou've already chosen the best response.1umm. upar 20 hai.. 20/64C7..

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1merko samaj agaya 20 kyun hai :")

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1wait upload karta hooon drawing

shubhamsrg
 3 years ago
Best ResponseYou've already chosen the best response.0aa gaya 20 yo maine 1 diagnol miss kar diya tha

yrelhan4
 3 years ago
Best ResponseYou've already chosen the best response.1abbe koi mereko btayega? :/

shubhamsrg
 3 years ago
Best ResponseYou've already chosen the best response.0dekho 8 sq. wale 2 diagnols hote hain 7 sq wale 4 diagnols hote hain hai na?

DLS
 3 years ago
Best ResponseYou've already chosen the best response.13 tarah se le sakte hai 8c7 lelia aur 7c7 aur 7c7 se bhi

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1baaki green waaale nahi le sakte 7 nahi hai condition satisfy nahi karte

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1red waala aur 2 green waale hain acceptable case

yrelhan4
 3 years ago
Best ResponseYou've already chosen the best response.1hmm.. 2(8c7+7c7+7c7) nhi krna chahiye? us figure me / vale diagonals hain.. \ vale diagonals?

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1mai sirf bracket ke andar ka part bata raha tha

shubhamsrg
 3 years ago
Best ResponseYou've already chosen the best response.0kaise kar lete ho @DLS how? :O

DLS
 3 years ago
Best ResponseYou've already chosen the best response.1mai sirf ek side ka bata raha hoon

yrelhan4
 3 years ago
Best ResponseYou've already chosen the best response.1ohho.. ok samajh gya. thank you.
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