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Tot. Mock Test: 8+


Tot. Exam. Sec.: 2+


Total Practice Qs: 239+

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SHSTTON
24
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35
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59
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81 / 239

Choose the correct option.

If log5 + log(5x+1) = log(x+5) + 1, then x is equal to


A1

B3

C5

D10

 View Answer |  Submit Your Solution | Important Formulas | Topic: Logarithm | Asked In CapgeminiHireMee |

Answer: Option B

Explanation:

Here is no explanation for this answer

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Tags: Capgemini

NA
SHSTTON
10
Solv. Corr.
11
Solv. In. Corr.
21
Attempted
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Avg. Time

82 / 239

Choose the correct option.

Change 101010 two to base ten.


A42

B3

C84

D30

Answer: Option A

Explanation:

(101010) base2 = (1*2^5 + 0*2^4 + 1*2^3 +0*2^2 + 1*2^1 + 0*2^0) 10 = (42) base10

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Tags: iGate

NA
SHSTTON
12
Solv. Corr.
5
Solv. In. Corr.
17
Attempted
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Avg. Time

83 / 239

Choose the correct option.

If log2x = 3, then x is:


A9

B8

C7

D6

Answer: Option B

Explanation:

log2x = 3
23 = x
x = 8

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NA
SHSTTON
0
Solv. Corr.
0
Solv. In. Corr.
0
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84 / 239

Choose the correct option.

If log(k2 - 4k + 5) = 0, then the value of k is -


A1

B2

C3

D4

Answer: Option A

Explanation:

If log(k2 - 4k + 5) = 0, then the value of k is -

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NA
SHSTTON
0
Solv. Corr.
0
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0
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85 / 239

Choose the correct option.

log (1 + 2 + 3) = log 1 + log 2 + log 3


Alog10 10 = 1

Blog (2 + 3) = log (2 x 3)

Clog10 1 = 0

Dlog (1 + 2 + 3) = log 1 + log 2 + log 3

Answer: Option B

Explanation:

log (1 + 2 + 3) = log 1 + log 2 + log 3

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NA
SHSTTON
0
Solv. Corr.
0
Solv. In. Corr.
0
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Avg. Time

86 / 239

Choose the correct option.

If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:


A2.87

B2.967

C3.876

D3.912

Answer: Option C

Explanation:

If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:

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NA
SHSTTON
6
Solv. Corr.
1
Solv. In. Corr.
7
Attempted
0 M:0 S
Avg. Time

87 / 239

Choose the correct option.

If log 27 = 1.431, then the value of log 9 is:


A0.934

B0.945

C0.954

D0.958

Answer: Option C

Explanation:

If log 27 = 1.431, then the value of log 9 is:

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NA
SHSTTON
0
Solv. Corr.
0
Solv. In. Corr.
0
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0 M:0 S
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88 / 239

Choose the correct option.

If loga/b + logb/a = log (a + b), then:


Aa + b = 1

Ba - b = 1

Ca = b

Dapow2 - bpow2 = 1

Answer: Option B

Explanation:

If loga/b + logb/a = log (a + b), then:

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NA
SHSTTON
0
Solv. Corr.
0
Solv. In. Corr.
0
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89 / 239

Choose the correct option.

\((\frac{1}{\log_{3} 60 }+ \frac{1}{\log_{4} 60 } + \frac{1}{\log_{5} 60 })\)


A1

B5

C60

Answer: Option B

Explanation:

\((\frac{1}{\log_{3} 60 }+ \frac{1}{\log_{4} 60 } + \frac{1}{\log_{5} 60 })\)

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NA
SHSTTON
10
Solv. Corr.
29
Solv. In. Corr.
39
Attempted
0 M:0 S
Avg. Time

90 / 239

Choose the correct option.

What would be the value of (log a)2 -(log b)2


Alog(a+b)log(ab)

B3

Clog(ab)log(a/b)

DNone of these

 View Answer |  Submit Your Solution | Important Formulas | Topic: Logarithm | Asked In CapgeminiHireMee |

Answer: Option C

Explanation:

Question is in the form of a2 - b2 so the formulae is
(a+b)(a-b)=a2 - b2 where a=loga,b=logb
substitute in the formulae we get
(loga+logb)(loga-logb)
(log(ab))(log(a/b))

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