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Riddle:
What is the smallest whole number that is equal to seven times the sum of its digits?
Answer: The answer to this math riddle is 21. You probably just guessed to answer this math riddle, which is fine, but you can also work it out algebraically. The two-digit number ab stands for 10a + b since the first digit represents 10s and the second represents units. If 10a + b = 7(a + b), then 10a + b = 7a + 7b, and so 3a = 6b, or, more simply, a = 2b. That is, the second digit must be twice the first. The smallest such number is 21.
Riddle:
I was born a long time ago and have since grown to be respected amongst my peers. I have 2 younger siblings who also make my family proud. My father, a greatly respected figure, taught us many values to keep us focused and aligned. It was very important for my mother also, to instill in us a sense of Purpose and to teach us to be Humble in life despite our successes. "For as long as you've been around, the number of things you stand for, and the trinity that symbolizes you" those are the things that matter, my father always said. Understanding who I am is the key, my story isn't fiction, it is grounded in reality, under most of your feet. Who am I?
Answer: The riddle "10 digit answer in riddle" is unanswered. Do you know the answer? If so, click ANSWER and add your answer in the comments section.
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