Business Mathematics MCQ on Logarithms
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1. The power of a given basic value that produces desired number or value is :
(a) Anti-logarithm
(b) Logarithm
(c) Common Logarithm
(d) Natural Logarithm
Answer (b) Logarithm
2. The logarithm of the number 1 to any base is:
(a) 1
(b)10
(c) 0
(d) 100
Answer (c) 0
3. The logarithm of any quantity to the same base is:
(a) 1
(b)10
(c) 0
(d) 100
Answer (a) 1
4. The sign of the mantissa in a logarithm.
(a) Positive
(b) Negative
(c) Either of two
(d)None of the above
Answer (a) Positive
5. Who has invented Natural logarithm?
(a) Henry Briggs
(b) John Napier
(c) Gabriel Cramer
(d) David Hilbert
Answer (b) John Napier
6. Who has invented Common logarithm?
(a) Henry Briggs
(b) John Napier
(c) Gabriel Cramer
(d) David Hilbert
Answer (a) Henry Briggs
7. If standard form of a number is x = A x 10n then what is A?
(a) A >1
(b) A<1
(c) A≤1≤10
(d) 1≤ A <10
Answer (d) 1≤ A <10
8. What is the value of log2 64?
(a) 6
(b) 10
(c) 0
(d) 8
Answer (a) 6
9. What is the value of log √2 4 ?
(a) 2
(b)4
(c) 6
(d) 8
Answer (b)4
10. What is the value of log10 0.0001 ?
(a) 2
(b) 10
(c) 4
(d) 8
Answer (c) 4
11. Logarithm of 625 to the base 5 in
(a) 4
(b)3
(c) 2
(d) None
Answer (a) 4
12. The logarithm of 0.1024 to the base 0.4 is;
(a) 4
(b)3
(c) 5
(d) None
Answer (c) 5
13. The logarithm of 784 to the base 2√7 is:
(a) 4
(b) 2
(c) 3√7
(d) 2√7
Answer (a) 4
14. The logarithm of 1/32 to the base 2 is:
(a) -3
(b) -4
(c) -5
(d) None
Answer (c) -5
15. The characteristics of the log .0087 is
(a) -2
(b) -3
(c) 2
(d) 3
Answer (b) -3
16. If log 3=0.4771, then the value of log10 81 is:
(a) 1.9084
(b) 1.3286
(c) 0.9084
(d) 0.3286
Answer (a) 1.9084
17. If log 3=0.4771 then the number digits in 350 is:
(a) 23
(b) 24
(c) 25
(d) 50
Answer (b) 24
18. What is the value of x if log81x = 1.5?
(a) 729
(b) 829
(c) 81
(d) 819
Answer (a) 729
19. If log 5=0.6990 and log 3=0.4771, then log 45 is:
(a) 1.8751
(b) 1.9085
(c) 2.1303
(d) 1.6532
Answer (d) 1.6532
20. The sum of 2.5386 and 3.0899 is:
(a) 5.6285
(b) 1.6285
(c) 0.5513
(d) None
Answer (b) 1.6285
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