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If x^{m }.y^{n} = 7889, where x and y are prime numbers, the value of x + y is ? 
A) 30
B) 60
C) 100
D) 120
Correct Answer : 30 Explanation : x^{m}.y^{n} = 7889 
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(16)^{9} / (16)^{4} * (16)^{3} = (16)^{?} 
A) 6.75
B) 8
C) 10
D) 12
Correct Answer : 8 Explanation : (16)^{9} / (16)^{4} * (16)^{3} 
? = ∛103823 
A) 49
B) 51
C) 45
D) 47
Correct Answer : 47 Explanation : (^{n}√a )^{n}= a ? = ∛103823 
Which of the following is the greatest? 
A) 3333^{33}
B) 333^{333}
C) 33^{3333}
D) 3^{33333}
Correct Answer : 3^{33333} Explanation : 3^{33333} is the greatest number. 
Determine a possible value of x from the equation 5^{x2 }X 2^{3x/(x+1)} = 4 ? 
A) 1
B) 2
C) 0
D) 4
Correct Answer : 2 Explanation : 5^{x 2} X 2^{3x/(x + 1)} = 4 
If 0.42 * 100^{K} = 42, then what is the value of K? 
A) 4
B) 2
C) 1
D) 3
Correct Answer : 1 Explanation : 0.42 * 100^{K} = 42 
What is the value of (443+547)^{2} + (443547)^{2} / (443*443) + (547*547) ? 
A) 0 B) 1 C) 2 D) 3 Correct Answer : 2 Explanation : (443+547)^{2} + (443547)^{2} / (443*443) + (547*547) 