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Civil Service Commission Professional or Sub-Professional Reviewer - Page 50/159

Mathematics Test V - Page 50

___________16. If the dimensions of a square change in such a manner that the area remains constant, what must happen to the other side if one side will be increased by 1/4 of itself?
  1. it decreases by 1/5
  2. it decreases by 1/4
  3. it decreases by 1/3
  4. it decreases by 1/2
___________17. A man rowed 4 miles upstream for 2 hours. If the river flowed with a current of 2 miles per hour, how long did the man's return trip take?
  1. 1/3 hour
  2. 1/2 hour
  3. 2/3 hour
  4. 1 hour
___________18. The rectangle shown in the figure is divided into 6 equal squares. If the perimeter of the rectangle is 42 cm, what is the area of each square in cm2 ?
rectangle divided into 6 equal squares
  1. 6
  2. 9
  3. 12
  4. 15
Civil Service Reviewer Post 50/159