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01292013  #1 
Join Date: Jan 2013
Posts: 43

Math Question of the Week
I am going to do a "Math Question of the Week" every week. This will be like the Weekly Question but these will be math questions only!

01292013  #2  
Join Date: Jan 2013
Posts: 43

Question #1
Quote:
I am a fraction in simplest form. I am greater than 1/3 and less than 1/2. The sum of all of my digits is 8. The difference between my numerator and denominator is 7. What fraction am I? 

01302013  #3 
Join Date: Nov 2011
Posts: 945

Okay, the way I'd go about this is:
What's between 1/3 and 1/2? 1/3 = 2/6 = 4/12 1/2 = 3/6 = 6/12 5/12 is between 4/12 and 6/12. Does it work with the other conditions? Sum of the digits: 5 + 1 + 2 = 8. Good. Difference between numerator and denominator: subtracting the smaller number (5) from the larger one (12), we get: 125 = 7. Good. Therefore, 5/12 works for all the conditions; that's your answer.
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The only real failure in life is the failure to try 
01302013  #4  
Join Date: Jan 2013
Posts: 43

Correct!
Quote:


01302013  #5 
Join Date: Nov 2011
Posts: 945

Ya I kno I was gonna tell I was bored and no one was answering so why not haha
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The only real failure in life is the failure to try 
02042013  #6  
Join Date: Jan 2013
Posts: 43

Question #2
Quote:
Two fathers and two sons sat down to eat eggs for breakfast. They ate exactly three eggs, each person had an egg. How did this happen? 

02052013  #7 
Join Date: Apr 2011
Posts: 821

the one father is both a son and a father. In other words, its a grandfather, a father, and a son.
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live your life 
02052013  #8 
Join Date: Jan 2013
Posts: 43

Correct!

02132013  #9  
Join Date: Jan 2013
Posts: 43

Question #3
Quote:
A box of toy cars contains blue, orange, yellow, red, and black cars. A separate box contains a male and a female action figure. What is the probability of randomly choosing an orange car and a female action figure? Is it likely or unlikely that this combination is chosen?
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Aint nobody got time for that! 

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