A three-digit number is equal to 5 times the sum of its digits. What is this number?
Category: Math · Difficulty: expert
Hint: Express the number as 100a + 10b + c and use the digit sum condition.
Answer
A number equal to one hundred eighty
Explanation
Solving the equation shows that 180 fits the condition perfectly.
This is a expert math riddle — one of the harder riddles here. The answer is A number equal to one hundred eighty.
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