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Logarithms Practice Test 1
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© examsnet.com
Question : 25
Total: 40
If
log
10
3
=
0.477
, the no. of digits in
3
40
is:
18
19
20
21
Validate
Solution:
👈: Video Solution
Let
x
=
3
40
∴
log
x
=
40
log
10
3
=
40
×
0.477
=
19.08
Hence the number of digits in x is 20.
© examsnet.com
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