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kevinkeeganBest ResponseYou've already chosen the best response.2
want me to explain?
 one year ago

shivam_bhallaBest ResponseYou've already chosen the best response.0
@kevinkeegan Please do
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
okay you have 4 choices tiles to use WWW WWB WBWetc... each will take up 3 slots and you have 10 slots only so we use 3 diff groups( groups as in WWW= 1grp, WBW=1grp an so on) first, taking up 9 slots, so the probability of arranging the 3 grps = 4X4X4 ; now we left with 1 last slot for the single white tile; and we can put the white tiles @ 4 different places( trying drawing out): so that gives us extra 4 different combos and therefore, total probability= 4X4X4X4
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
dw:1335113090901:dw arrow point to last slot for single white tile
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
I know the answer. http://ptri1.tripod.com/ptreal1r.gif See this picture of a pascal's triangle. Now see the row 2 and sum all the numbers of row 2 You get 4! See the row 10 and get the sum of all the numbers in row 10. You get the answer!
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
one thing to note: question did not state if the tiles can be reused, if cannot reuse, answer is 4X3X2X4
 one year ago

artofspeedBest ResponseYou've already chosen the best response.0
what about Parthkohli's way ?
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
pascal triangle does not work here becasue the tiles are in groups of 3
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
The question is about 10*1
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
pls read the question again
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
The final line, see it.
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
is they want us to use the 4 combo of WWW WWB WBW BWW then im right
 one year ago

shivam_bhallaBest ResponseYou've already chosen the best response.0
Somebody please explain the question. It is confusing
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
they want u to use the combos to fill up the 10 slots
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
They're asking us the different colour patterns in a ten by one rectangle. There are 1024 such patterns. Try it on your own.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
They're asking us about the number of patterns possible in this case.
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
last line : "using THESE TILES " and i suppose THESE TILES refer to the 4 different colour patterns
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
the tiles are not individual they come in sets
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
All right. You're right, I'm wrong. Okay?
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
dw:1335113911913:dw
 one year ago

artofspeedBest ResponseYou've already chosen the best response.0
@kevinkeegan, 'these tiles' actually refer to the 3 tiles in the picture
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.2
yep and the 3 tiles form the 4 colour patterns they giv WWW WBW BWW WWB
 one year ago

PaxPolarisBest ResponseYou've already chosen the best response.0
305. http://openstudy.com/updates/4f943f7de4b000ae9eca7fbc
 one year ago

nikiBest ResponseYou've already chosen the best response.0
hey i think the ans is 385 plz check
 one year ago
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