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Tuesday, March 5, 2013

Civil Service Commission Professional or Sub-Professional Reviewer - Page 76/159

Mathematics Test II Solution - Page 76

29. Dividing by 0.125 is the same as multiplying by _________?

   1    
   0.125

      1 
=   
      8

= 1 x  8 
          1

= 8 *Ans.

30. If a copper wire is 3.7 feet long, its length in inches is ________?

3.7 feet = 3.7 feet x  12 inches 
                                   foot

44.4 inches *Ans.

44.4 inches is between 44 and 45

31.         9       = _________?
      0.09 x 0.9

          9     
=    9   x  9 
   100    10

         9    
=     81    
     1000

= 9 x  1000 
            81

=  1000  *Ans.
       9

32. How much money can be saved by buying 72 pens at $90 per  dozen than buying them for $7.75 each?

Cost in buying by dozen :

= 72 pens x  1 dozen  x  $90 
                     12 pens    doz.

= 6 x $90

= $540

Cost in buying per piece :

= 72 x $7.75

= 558

Amount Saved = $558 - $540
                       = $18 *Ans.

Civil Service Reviewer Post 76/159