The sum of digits 10^n-1 is 3798. The value of n is:
A)431
B)673
C)422
D)501
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hey mate. here is your answer. 10^n -1 = 3798
10^n = 3799
taking logs, n = log 3799 ≈ 3.5797 <-------
if you meant 10^(n-1), work out (n-1) = log 3798.
MARK AS BRAINLIST
10^n = 3799
taking logs, n = log 3799 ≈ 3.5797 <-------
if you meant 10^(n-1), work out (n-1) = log 3798.
MARK AS BRAINLIST
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