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Monday, March 4, 2013

Civil Service Commission Professional or Sub-Professional Reviewer - Page 102/159

Mathematics Test IV Solution - Page 102

39. When + 13 is added to - 15, the sum is _______ ?

Sum = +13 + (-15)
Sum = -2 * Ans.

40. When -15 is subtracted from -18, the difference is _______?

Difference = -18 - (-15)
Difference = -18 + 15
Difference = -3 * Ans.


41. When the product of (-4) and (-17) is divided by 2, the quotient is _____ ?

Product =  (-4) (-17) 
                        2
             = 68 / 2
             = 34 * Ans.

42. If 5x + 17 = 32, then x = _________ ?

5x + 17 = 32
        5x = 32 - 17
        5x = 15
          x = 15 / 5
          x = 3 * Ans.

43. Solve for M :

 M  -  M  = 4
 7       3

 3M  -  7M  = 4
  21      21

 -4M  = 4
   21

M = 4 ( -21 )
              4
M = -21 * Ans.

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