3-Digit Number

Problem
The digits of a three-digit number are in arithmetic progression. If you divide the number by the sum of its digits, the quotient is 26. If the digits are reversed, the resulting number is 198 more than the original number. Find the sum of all the digits.

A.   9 C.   15
B.   12 D.   18

 

Three-digit numbers not divisible by 3

Problem
How many three-digit numbers are not divisible by 3?
 

 
 
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