SOLUTION: when 247 is divided by 6, the remainder is r, and when 247 is divided by 12,the remainder is s. what is the value of r – s ? a -6 b -1 c 0 d 1 e 6

Algebra ->  Divisibility and Prime Numbers -> SOLUTION: when 247 is divided by 6, the remainder is r, and when 247 is divided by 12,the remainder is s. what is the value of r – s ? a -6 b -1 c 0 d 1 e 6      Log On


   

Question 301756: when 247 is divided by 6, the remainder is r, and when 247 is divided by 12,the remainder is s. what is the value of r – s ?
a -6 b -1 c 0 d 1 e 6
Answer by Edwin McCravy(20064) About Me  (Show Source):
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when 247 is divided by 6, 

   41
6)247
  24 
    7
    6
    1

the remainder is r, 

I got a remander of 1, so r is 1

and when 247 is divided by 12,

    20
12)247
   24
     7
     0
     7

the remainder is s. 

I got a remainder of 7, so s is 7

what is the value of r – s ?

Since r is 1, and s is 7,  then r - s = 1 - 7 = -6

So the answer is -6, which is choice (a)

Edwin