
#1
Mar512, 10:21 AM

P: 43

The question is:
Two number cubes are rolledone is red and the other is white. Find the probability that the red cube is a 6 and the sum of the two cubes is 10. I said that it is 1/6 for being a 6 and since only a 4 can add up to 10 its 1/6*1/6=1/36. But my teacher said it was wrong. Please help!!! 



#2
Mar512, 11:58 AM

Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 38,890

I must say that I think you are correct and your teacher wrong. Are you sure you two are talking about the same problem? If the problem were just "one cube is 6 and the two sum to 10" then then you could get a 6 on either, and a four on the other: (1/6)(1/6)+ (1/6)(1/6)= 1/18.




#3
Mar512, 12:01 PM

HW Helper
Thanks
P: 4,670

RGV 


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