Civil Service Arithmetic Ability Practice Test Results

Question 1
58% answer correctly
What`s the circumference of a circle that has a diameter of 12?
18.85
75.40
37.70
710.61
Question 2
55% answer correctly
A circle has a diameter of 15 inches. What is its approximate circumference?
47.12
56.25
1,325.36
74.02
Question 3
37% answer correctly
What`s the cube root of \\(8x^3\\) ?
\\(\\sqrt[3]{2}x\\)
\\(2\\sqrt[3]{x}\\)
\\(\\sqrt[3]{2x}\\)
2x