Civil Service Arithmetic Ability Practice Test Results

Question 1
48% answer correctly
If \\(a = \\frac{2}{3}\\) then \\(\\frac{1}{a}\\) = ?
\\(\\frac{3}{2}\\)
2
\\(\\frac{2}{3}\\)
3
Question 2
60% answer correctly
Solve this equation for a: \\(a = \\frac{b^7}{b^4}\\)
-3b
\\(b^3\\)
\\(b^{-3}\\)
\\(b^{11}\\)
Question 3
62% answer correctly
If a + b = 4, what is the value of 4a + 4b?
32
16
8
20