Civil Service Arithmetic Ability Practice Test Results

Question 1
43% answer correctly
What is the index in \\(\\sqrt[3]64\\) ?
\\(\\sqrt{ }\\)
4
64
3
Question 2
65% answer correctly
What`s the least common multiple (LCM) of 7 and 8?
7 and 8 have no common multiples
28
56
224
Question 3
74% answer correctly
What`s the greatest common factor of 64 and 40?
104
8
16
4