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Entry Test MCQ :: Logarithm

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11.  If log2 = 0.3010 log 3 = 0.4771 evaluate |log 3?25/100|
A. 0.4516 B. 0.1234
C. 0.5678 D. ?1.534
E. 0.3284    

12.  Evaluate 49log75
A. 25 B. 5
C. 6 D. 5?6
E. 7    

13.  Evaluate log2 (log4 256)
A. 2 B. 4
C. 3 D. 8 1
E. 8    

14.  Evaluate 3logb a4 x loga b5
A. 35 B. 49
C. 60 D. 30
E. 7    

15.  If log100 u = -2 then u =
A. 1000000 B. 1/1000000
C. 0.001 D. 1/10000
E. 100    

16.  If log81/log3 = x then x is equal to
A. 2 B. 3
C. 4
E. 7    

17.  If loge x + loge(1-x) = 0 then
A. x2+x-1 = 0 B. x2-x+1 = 0
C. x2+x-e = 0 D. x2+x+e = 0
E. x2+7x+e = 0    

18.  Log2 9 is
A. an integer B. a prime number
C. a rational number D. an irrational number

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