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Logarithms Practice Test 1
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© examsnet.com
Question : 15
Total: 40
If
log
3
=
0.4771
, then find the number of digits in
3
100
.
79
48
52
117
Cannot be determined
Validate
Solution:
👈: Video Solution
Let
x
=
3
100
Taking log on both sides,
log
x
=
log
3
100
log
x
=
100
×
log
3
log
x
=
100
×
0.4771
log
x
=
47.71
The characteristic is 47
∴ Number of digit in
3
100
=
48
© examsnet.com
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