Aptitude - Logarithm - Discussion
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Read more:"Actions speak louder than words."
- (Proverb)
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If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:
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2.870 | [B]. |
2.967 | | [C]. |
3.876 | [D]. |
3.912 |
Answer: Option D
Explanation:
| log5 512 |
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(9 x 0.3010) |
| 1 - 0.3010 |
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= 3.876 |
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Happy said:
(Sat, Apr 23, 2011 01:25:57 AM)
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| How is log 10=1. |
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Sumit said:
(Fri, May 27, 2011 01:00:45 AM)
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| How can you get log (10/2) ? |
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Kasthuri said:
(Sat, Aug 6, 2011 10:30:29 PM)
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| If log 2 = 0.3010 and log 3 = 0.4771,and log 7 = 0.8451 then the value of log75 is? |
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Jithu said:
(Fri, Aug 19, 2011 03:24:10 PM)
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| @kasthuri. Can you explain the solution ? |
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Sandy said:
(Sat, Aug 20, 2011 08:09:01 PM)
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log 10 means
log 10 to the base 10
that ts equal to 1
so,
log10=1 |
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Heaven.Bangladesh said:
(Thu, Sep 1, 2011 02:51:36 PM)
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@sumit
Log 5=log(10/2).coz,10/2=5 |
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Shalini said:
(Sat, Sep 3, 2011 12:31:07 PM)
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@Kasthuri
log 75= log(5*5*3) = log(5*5)+log(3), because log m*n=log m+log n
=2 log5 +log3
=2 log(10/2)+log3
=2(log10-log2)+log3
=2(1-.3010)+..4771
=2*.699+.4771
=1.398+.4771
=1.8751 |
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Sinkay said:
(Tue, Dec 6, 2011 04:28:27 PM)
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| If log 2=0.3010 and log 7=0.8451, |
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