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I got 7/216 too but it took me a while.

anybody have a better method than the longer way of finding diff combinations and counting them up. is there a formula i am missing?
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The total potential outcomes are not 216 :

as you can see , the product 6 * 6 * 6 = 216 but

6*6*5 = 180

then we have : 5*5*6 = 150

and then : 4*6*6 =144

We must consider that in order to calculate the "space of events" we have to pick only the possible products of our numbers .

So , imho , OA could be 5/91 .

Regards
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babar
The total potential outcomes are not 216 :

as you can see , the product 6 * 6 * 6 = 216 but

6*6*5 = 180

then we have : 5*5*6 = 150

and then : 4*6*6 =144

We must consider that in order to calculate the "space of events" we have to pick only the possible products of our numbers .


So , imho , OA could be 5/91 .

Regards



Why do we have to pick only 'possible products of our numbers'??
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i did not understand how the total potential outcome would be 216
Can anyone pls explain!!!
I think we cannot take all the nos upto 216...right????
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Total number of outcomes = 6 *6*6
-> 6 outcomes for dice1 * 6 outcomes for dice2 * 6outcomes for dice3
=> 6*6*6 = 216

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