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Home Aptitude Logarithm See What Others Are Saying!
  • Question
  • The value of 1/(log 2 ?) + 1/(log 6 ?) is?


  • Options
  • A. greater then 1
  • B. less than 1
  • C. between 5 and 6
  • D. None of these

  • Correct Answer
  • greater then 1 

    Explanation

    Given exp. = 1/(log2 ?) + 1/(log6 ?)
    = log? 2 + log? 6
    = log? (2 x 6)
    = log?12

    Since 12 > ? so the value of given expression is more than 1.


  • More questions

    • 1. 
      A, B, and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252s, B in 308s and C in 198s, all starting of the same point. After what time will they meet again at the string point?

    • Options
    • A. 26 min and 18s
    • B. 42 min and 36s
    • C. 45 min
    • D. 46 min and 12s
    • Discuss
    • 2. 
      A person has completely put each of three liquids 403 L of petrol, 456 L of diesel and 496 L of mobile oil in in bottles of equal size without mixing any of the above three types of liquids such that each bottle is completely filled. What is the least possible number of bottles required?

    • Options
    • A. 34
    • B. 44
    • C. 46
    • D. None of these
    • Discuss
    • 3. 
      30 pineapple trees, 45 orange tree and 60 mango trees have to be planted in rows such that each row contains the same number of trees of one variety only. What is minimum number number of row in which the trees may be planted?

    • Options
    • A. 10
    • B. 15
    • C. 25
    • D. 9
    • Discuss
    • 4. 
      If HCF of x 3 - 10m 2 + 31x - 30m and x 2 - 8mx + 15 is a linear polynomial, then what is the value of m?

    • Options
    • A. 2
    • B. 3
    • C. 1
    • D. 4
    • Discuss
    • 5. 
      The average of 8 number 21. if each of the number is multiplied by 8,the new set of number is?

    • Options
    • A. 8
    • B. 21
    • C. 29
    • D. 168
    • Discuss
    • 6. 
      The average of 50 number is 38 .if two numbers 45 and 55 are discarded , the average of the remaining number is?

    • Options
    • A. 36.5
    • B. 37.0
    • C. 37.5
    • D. 37.52
    • Discuss
    • 7. 
      The average height of 30 girls out of a class of 40 is 160 cms and that of the remaining girls is 156 cms. the average height of the whole class is?

    • Options
    • A. 11.8
    • B. 25
    • C. 29.5
    • D. 30
    • Discuss
    • 8. 
      If a, b, c, d, e are five consecutive odd number , their average is?

    • Options
    • A. 5 (a + 4)
    • B. abcd/5
    • C. 5 (a + b + c + d + e)
    • D. None of these
    • Discuss
    • 9. 
      Out of three numbers, the first is twice the second and is half of the third. If the average of three number is 56, the three number in order are?


    • Options
    • A. 48, 96, 24
    • B. 48, 24, 96
    • C. 96, 24, 48
    • D. 96, 48, 24
    • Discuss
    • 10. 
      The average weight of A, B, C is 45kg. if the average weight of A and B be 40 kg and that of B and C be 40kg and that of B and C be 43kg, then the weight of B is?

    • Options
    • A. 17kg
    • B. 20kg
    • C. 26kg
    • D. 31kg
    • Discuss


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