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avatar+46 

2. When two ordinary dice, one black and one white, are rolled, the number of
ways the sum of 7 can occur is

A) 2

B) 8

C) 4

D) 7

E) 6
 

 Apr 11, 2020
 #1
avatar+483 
+2

The number of ways of getting 7 are as follows:

 

1+6

2+5
3+4

4+3

5+2

6+1

that's 6 total cases, which means our answer is E). This is simply just a couple of cases. 

 Apr 11, 2020

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