Civil Service Arithmetic Ability Practice Test Results

Question 1
73% answer correctly
Which of the following is an obtuse angle?
50°
40°
25°
140°
Question 2
55% answer correctly
A circle has a diameter of 9 inches. What is its approximate circumference?
28.27
63.62
286.28
44.41
Question 3
37% answer correctly
Which of the following statements will produce a value that`s less than zero?
\\(x^{-2}\\)
\\(-x^7\\)
\\(x^{-7}\\)
\\(-x^2\\)