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  • Question
  • If logaab = x, then logbab = ?


  • Options
  • A. 1/x
  • B. x/(x+1)
  • C. x/(1-x)
  • D. x/(x-1)

  • Correct Answer
  • x/(x-1) 


  • Logarithm problems


    Search Results


    • 1. If log 2 = 0.30103, Find the number of digits in 256 is

    • Options
    • A. 17
    • B. 19
    • C. 23
    • D. 25
    • Discuss
    • 2. If log 27 = 1.431, then the value of log 9 is

    • Options
    • A. 0.754
    • B. 0.854
    • C. 0.954
    • D. 0.654
    • Discuss
    • 3. If log 2 = 0.3010 and log 3 = 0.4771, the values of log5 512 is

    • Options
    • A. 2.875
    • B. 3.875
    • C. 4.875
    • D. 5.875
    • Discuss
    • 4. The tops of two poles of height 60 metres and 35 metres are connected by a rope. If the rope makes an angle with the horizontal whose tangent is 5/9 metres, then what is the distance (in metres) between the two poles?

    • Options
    • A. 63
    • B. 30
    • C. 25
    • D. 45
    • Discuss
    • 5. From a point P, the angle of elevation of a tower is such that its tangent is 3/4. On walking 560 metres towards the tower the tangent of the angle of elevation of the tower becomes 4/3. What is the height (in metres) of the tower?

    • Options
    • A. 720
    • B. 960
    • C. 840
    • D. 1030
    • Discuss
    • 6. If logx916 = -12, then the value of x?

    • Options
    • A. -3/4
    • B. 3/4
    • C. 81/256
    • D. 256/81
    • Discuss
    • 7. If log72 = m, then log4928 is equal to ?

    • Options
    • A. 1/(1+2m)
    • B. (1+2m)/2
    • C. 2m/(2m+1)
    • D. (2m+1)/2m
    • Discuss
    • 8. Find the logarithm of 144 to the base 23 :

    • Options
    • A. 2
    • B. 4
    • C. 8
    • D. None of these
    • Discuss
    • 9. If logxl+m-2n = logym+n-2l = logzn+l-2m , then xyz is equal to

    • Options
    • A. 0
    • B. 1
    • C. lmn
    • D. 2
    • Discuss
    • 10. If log 64 = 1.8061, then the value of log 16 will be (approx)?

    • Options
    • A. 1.9048
    • B. 1.2040
    • C. 0.9840
    • D. 1.4521
    • Discuss


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