Friday, February 5, 2010

A lab has 65 mice. Some are white and the rest are gray. Which of the following could be the ratio of white mi

A lab has 65 mice. Some are white and the rest are gray. Which of the following could be the ratio of white mice to gray mice in the lab?





1 : 3


5 : 8


5 : 11


3 : 4


5 : 12A lab has 65 mice. Some are white and the rest are gray. Which of the following could be the ratio of white mi
The ratio 1:3 is saying that there is one white mouse to every three gray ones. That is if there was one white and three gray there would be 4 mice.


65 does not go into 4 so it can not be 1:3.





5+8=13 which goes into 65 five times.


5+11=16 which does not go into 65


3+4=7 which does not go into 65


5+12=17 which does not go into 65.





Therefore 5:11 is the only ratio that works unless you have parts of mice left over.A lab has 65 mice. Some are white and the rest are gray. Which of the following could be the ratio of white mi
5:8 is the only possibility since it's the only one when added up is a divisable of 65
5: 8
I would have to know the # of white mice and the # of gray mice
5:8 - go by factors, the number of white and gray mice is not needed info.
the only possible ratio would 5:8


that would equal out to 25 white mice and 40 gray mice

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