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Aptitude test questions about Logarithm

Aptitude test questions about Logarithm These are some aptitude test questions as follows: 1. Sample questions of aptitude test 1. Which ...

Aptitude test questions about Logarithm

These are some aptitude test questions as follows:

1. Sample questions of aptitude test



1. Which of the following statements is not correct?
A. log10 10 = 1 B. log (2 + 3) = log (2 x 3) C. log10 1 = 0 D. log (1 + 2 + 3) = log 1 + log 2 + log 3

2. If logx y = 100 and log2 x = 10, then the value of y is:
A. 210 B. 2100 C. 21000 D. 210000

3. If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:
A. 1 B. 3 C. 5 D. 10

4. If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:
A. 2.870 B. 2.967 C. 3.876 D. 3.912

5. If log 27 = 1.431, then the value of log 9 is:
A. 0.934 B. 0.945 C. 0.954 D. 0.958

6. If log10 2 = 0.3010, then log2 10 is equal to:

A.
699/301

B.
1000/301

C.
0.3010

D.0.6990

7. If log10 2 = 0.3010, the value of log10 80 is:

A.1.6020 B.1.9030 C.3.9030 D.None of these

8. If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:

A.1 B.3 C.5 D.10

If log 2 = 0.30103, the number of digits in 2^64 is:

A. 18 B. 19 C. 20 D. 21

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