If log10 5+ log10 (5x+1)= log10 (x+5)+1, then x is equal to
1
3
5
10
(logb a X logc b X loga c) is equal to
0
abc
a+b+c
√7+√5 / √7 - √5 is equal to
6+√35
6-√35
2
(log5 3)X(log3 625) equals
4
The value of √0.16/0.4 is
0.02
0.2
0.63
None of these
If log10 125+log10 8=X, then X is equal to
1/3
0.064
-3
√00004761 equals
0.00069
0.0069
0.0609
0.069
If log 2=0.3010 and log 3=0.4771, then value of log5 512 is
2.870
2.967
3.876
3.912
If log 2=0.30103, the number of digits in 450 is
30
31
100
200
If x = 5 + 2√6, then (x -1)/√x is equal to:
√2
2√2
√3
2√3
If ax - b, by – c and cz – a, then the value of xyz is:
1/abc
The value of √0.121 is:
0.011
0.11
0.347
1.1
If 3a = 4b = 6c and a + b + c = 27√29, then √a2+b2+c2 is
3√29
81
87
√7921 *51+374 = (?)3
16
19
15
21
(13)3+73/(13)2+72-? =20
6
20
91
If log2 [log3(log2 x)]=1, then x is equal to
12
128
512
√53824=?
202
232
242
332
The value of log(-1/3) 81 is equal to
-27
-4
27
If 5√5 x 53 + 5-3/2 = 5a+2, then the value of a is:
8
2x x 81/5 = 21/5, then x is equal to:
1/5
-1/5
2/5
-2/5
The square root of (7 + 3√5)(7-3√5) is:
√5
4 3√5
3√5
(log5 5)(log4 9) (log3 2) is equal to
3/2
(21 .35)2 +(12.25)2 =?
171.4125
605.885
604.085
463.8125
If 2*3 =√13 and 3*4 =5, then the value 5*12 is:
√17
√29
13
The value of log2(log3 625) is
If (√3)5 x 92 = 3n x 3√3, then the value of n is:
If log10 2=0.3010, then log2 10 is equal to
699/301
1000/301
0.3010
0.6990
If a = 0.1039, then the value of √4a2-4a+1 +3a is
0.1039
0.2078
1.1039
2.1039
If 2x = 3√32, then x is equal to :
3/5
5/3
The value of (log9 27+log8 32) is
7/2
19/6
7