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

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DLSBest ResponseYou've already chosen the best response.1
nahi,nahi ho sakta :O galat question hai :
 11 months ago

yrelhan4Best ResponseYou've already chosen the best response.1
nvm. i think... i got it. http://www.allinterview.com/showanswers/8354.html
 11 months ago

yrelhan4Best ResponseYou've already chosen the best response.1
But a better explanation would be even better..
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
There 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
 11 months ago

shubhamsrgBest ResponseYou've already chosen the best response.0
7 chosen ki 3 chosen ?
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
merko samaj agaya shayad :/
 11 months ago

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

yrelhan4Best ResponseYou've already chosen the best response.1
umm. upar 20 hai.. 20/64C7..
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
merko samaj agaya 20 kyun hai :")
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
wait upload karta hooon drawing
 11 months ago

shubhamsrgBest ResponseYou've already chosen the best response.0
aa gaya 20 yo maine 1 diagnol miss kar diya tha
 11 months ago

yrelhan4Best ResponseYou've already chosen the best response.1
abbe koi mereko btayega? :/
 11 months ago

shubhamsrgBest ResponseYou've already chosen the best response.0
dekho 8 sq. wale 2 diagnols hote hain 7 sq wale 4 diagnols hote hain hai na?
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
3 tarah se le sakte hai 8c7 lelia aur 7c7 aur 7c7 se bhi
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
baaki green waaale nahi le sakte 7 nahi hai condition satisfy nahi karte
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
red waala aur 2 green waale hain acceptable case
 11 months ago

yrelhan4Best ResponseYou've already chosen the best response.1
hmm.. 2(8c7+7c7+7c7) nhi krna chahiye? us figure me / vale diagonals hain.. \ vale diagonals?
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
mai sirf bracket ke andar ka part bata raha tha
 11 months ago

shubhamsrgBest ResponseYou've already chosen the best response.0
kaise kar lete ho @DLS how? :O
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
mai sirf ek side ka bata raha hoon
 11 months ago

yrelhan4Best ResponseYou've already chosen the best response.1
ohho.. ok samajh gya. thank you.
 11 months ago

DLSBest ResponseYou've already chosen the best response.1
sab clear hojaega isse :
 11 months ago
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