If log1087.5 = 6.9421, then the number of digits in (875)10 is?	Select the correct option: A) 30 B) 28 C) 80 D) 26 E) 25
X = (875)10 = (87.5 x 10)10   Therefore, log10X = 10(log1087.5 + 1)   = 10(6.9421 + 1)   = 10(7.9421) = 79.421   X = antilog(79.421)   Therefore, number of digits in X = 80.   ANSWER:80
<result>C</result>
If log1087.5 = 6.9421, then the number of digits in (875)10 is?