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Lucy rolls 2 fair dice and adds the results from each. 
Work out the probability of getting a total that is a multiple of 5.

 Sep 25, 2018
 #1
avatar+103148 
+1

Multiples of 5  =  5  and 10

 

Ways to roll a 5  =  (1,4) ( 4,1)  (2,3) (3,2)

 

Ways to roll  a 10   =  (5,5) (4,6) (6,4)

 

We have  7  possible outcomes for a multiple of 5...and there are   36  possible outcomes in total 

 

So  P (multiple of 5)    = 7 / 36

 

 

cool cool cool

 Sep 25, 2018
 #2
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+1

hey thanks man for the fast reply you're a big help!

Guest Sep 25, 2018
 #3
avatar+103148 
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OK...no prob  !!!

 

 

cool cool cool

CPhill  Sep 25, 2018

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