Large exponents and standard numerals

How many digits are in the standard numeral for2^31 x 5^27I was able to use an on line calculator and found the answer is 29.My question is, how can I figure this out without the aid of a... more


Logical Analysis

Six friends are sitting in a rectangular table with 6 seats, one at the head of the table, and two on each long side of the table. The chairs are numbered from 1 through 6 in a clockwise manner,... more

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