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Civil Service Commission Professional or Sub-Professional Reviewer - Page 43/159

Mathematics Test IV - Page 43 

___________37. If prices are reduced by 20 %, quantity sold increase by 25 %. What is the net effect on the gross revenue?
  1. it increases by 5%
  2. it decreases by 5%
  3. it remains the same
  4. it increases by 10%
___________38. The average of three numbers is xyz. If the sum of two numbers is x + y, what is the other number?
  1. 3xyz - (x+y)
  2. xyz - (x+y)
  3. z
  4. can't be determined from the given information

___________39. When + 13 is added to - 15, the sum is _______ ?
  1. -2
  2. 2
  3. -18
  4. 18

___________40. When -15 is subtracted from -18, the difference is _______?
  1. -3
  2. 3
  3. 33
  4. -33

___________41. When the product of (-4) and (-17) is divided by 2, the quotient is _____ ?
  1. -34
  2. 34
  3. 68
  4. -66
Civil Service Reviewer Post 43/159