Aptitude Questions Practice Question and Answer

Q: For x∈N, x>1,  and  p=logxx+1, q=logx+1x+2 then which one of the following is correct? 6721 2

  • 1
    p < q
    Correct
    Wrong
  • 2
    p = q
    Correct
    Wrong
  • 3
    p > q
    Correct
    Wrong
  • 4
    can't be determined
    Correct
    Wrong
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Answer : 3. "p > q"
Explanation :

Answer: C) p > q Explanation: kl>k+1l+1 for (k,l) > 0 and  k > l        Let     k = x+1    and   l = x       Therefore, x+1x>(x+1)+1(x)+1        (x + 1) > x       Therefore, log(x+1)log(x)>log(x+2)log(x+1)       ⇒logxx+1 >logx+1x+2

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Answer : 2. "19/20"

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Answer : 1. "5:2"

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Answer : 3. "400"

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Answer : 2. "280"

Q: What is the number of digits in 333? Given that log3 = 0.47712? 5251 0

  • 1
    12
    Correct
    Wrong
  • 2
    13
    Correct
    Wrong
  • 3
    14
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 2. "13"
Explanation :

Answer: B) 13 Explanation:  Let   Let x=333 = 333    Then, logx = 33 log3     = 27 x 0.47712 = 12.88224    Since the characteristic in the resultant value of log x is 12   ∴The number of digits in x is (12 + 1) = 13    Hence the required number of digits in 333is 13.

Q: In a code, CORNER is written as GSVRIV. How can CENTRAL be written in that code? 5037 4

  • 1
    DFOUSBM
    Correct
    Wrong
  • 2
    GIRXVEP
    Correct
    Wrong
  • 3
    GNFJKER
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "GIRXVEP"

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