(21 .35)2 +(12.25)2 =?
171.4125
605.885
604.085
463.8125
None of these
If log8 (X2+X)-log5(x+1)=2, then the value of x is
5
10
25
32
The value of (log9 27+log8 32) is
7/2
19/6
4
7
(log5 3)X(log3 625) equals
1
2
3
If 3a = 4b = 6c and a + b + c = 27√29, then √a2+b2+c2 is
3√29
81
87
√7+√5 / √7 - √5 is equal to
6+√35
6-√35
If pqr = 1, the value of the expression (1/(1 + p + q-1)) + (1/(1 + q + r-1)) + (1/(1 + r + p-1)) is equal to
p + q + r
1/(p + q + r)
p-1+ q-1+ r-1
The value of √0.16/0.4 is
0.02
0.2
0.63
If √24 = 4.899, the value of √8/3 is
0.544
1.333
1.633
2.666
If log10 125+log10 8=X, then X is equal to
1/3
0.064
-3
If log2 [log3(log2 x)]=1, then x is equal to
0
12
128
512
If a + b + c = 13, a2 + b2 + c2 = 69, then find ab + bc + ca.
-50
50
69
75
(13)3+73/(13)2+72-? =20
6
20
91
The value of(1/3 log10 125- 2log10 4+log10 32) is
4/5
If 2x = 3√32, then x is equal to :
3/5
5/3
(logb a X logc b X loga c) is equal to
abc
a+b+c
The value of √0.121 is:
0.011
0.11
0.347
1.1
If (√3)5 x 92 = 3n x 3√3, then the value of n is:
[log(a2/bc)+log(b2/ac)+log(c2/ab)] is equal to
If √2n = 64, then the value of n is:
The value of log(-1/3) 81 is equal to
-27
-4
27
If log10 2=0.3010 and log10 7=0.8451, then the value of log10 2.8 is
0.4471
1.4471
2.4471
(log5 5)(log4 9) (log3 2) is equal to
3/2
If 2*3 =√13 and 3*4 =5, then the value 5*12 is:
√17
√29
13
The square root of (7 + 3√5)(7-3√5) is:
√5
4 3√5
3√5
√571536/42 * ?=5850
420
240
315
325
87878 - 7878 - 6666- 777- 33 =?
73354
75224
72534
72524
If 5√5 x 53 + 5-3/2 = 5a+2, then the value of a is:
8
If log 2=0.30103, the number of digits in 246 is
18
19
21
The values of the numbers 22004 and 52004 are written one after another. How many digits are there in all
4008
2003
2004