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.
|
log√ 8 / log 8 is equal to
|
|
A. 1/√8
|
B. 1/4
|
|
|
C. 1/2
|
D. 1/8
|
|
3.
|
If ( log b a) (log c b) (log a c) is equal to
|
|
A. 0
|
B. 1
|
|
|
C. abc
|
D. a+b+c
|
|
4.If log 2 = 0.30103, the number of digits in
520 is
A.
14 B. 16
C.
18 D. 25
5.
|
If log 2 = 0.3010 and log 3 = 0.4771, the values of log5 512 is
|
|
A. 2.870
|
B. 2.967
|
|
|
C. 3.876
|
D. 3.912
|
|
6.
|
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
|
|
8.
|
If
log 27 = 1.431, then the value of log 9 is:
|
|
A.
|
0.934
|
B.
|
0.945
|
C.
|
0.954
|
D.
|
0.958
|
|
9. The
value of log2 16 is
A. 1/8 B.
4
C.
8 D. 16
10.
|
If log
|
a
|
+
|
log
|
b
|
= log (a + b), then:
|
b
|
a
|
|
A.
|
a + b =
1
|
B.
|
a - b =
1
|
C.
|
a = b
|
D.
|
a2 - b2 =1
|
|
