Aptitude - Logarithm - Discussion
Discussion Forum : Logarithm - General Questions (Q.No. 1)
1.
Which of the following statements is not correct?
Answer: Option
Explanation:
(a) Since loga a = 1, so log10 10 = 1.
(b) log (2 + 3) = log 5 and log (2 x 3) = log 6 = log 2 + log 3
log (2 + 3) 
log (2 x 3)
(c) Since loga 1 = 0, so log10 1 = 0.
(d) log (1 + 2 + 3) = log 6 = log (1 x 2 x 3) = log 1 + log 2 + log 3.
So, (b) is incorrect.
Discussion:
37 comments Page 3 of 4.
Deepak said:
7 years ago
I am not understanding this. Can anyone explain by taking general variable?
Kity said:
7 years ago
How, Please explain this.
Abhishek said:
7 years ago
The answer B is correct. I agree with it.
Omkar rajale said:
7 years ago
Please explain the option D.
Keerthana said:
7 years ago
Thanks all for explaining.
Shivam Ghorpade said:
6 years ago
Thanks all for explaining.
(1)
Sneha said:
5 years ago
Thanks for the explanation.
(2)
Girmay Yohanness said:
5 years ago
Thanks for the explanation.
(3)
Swaroop said:
5 years ago
According to me, Option B and D, both are incorrect.
(3)
Swaroop said:
5 years ago
Answer D is correct too, since.
log(1+2+3)=log(6)=log(1*2*3)=log1+log2+log3.
log(1+2+3)=log(6)=log(1*2*3)=log1+log2+log3.
(3)
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