842.
421 isn't big enough
421 isn't big enough
I am a three digit number. My tens digit is twice my ones digit, my hundreds digit is twice my tens digit. I am greater than 500. Who am I?
How about 631?
631 is > 500.
This is a math riddle not a math question. There are several answers.
unit digit:tens digit:hundred digit
must be 1:2:4
631 does not fit that ratio
drwl's answer of 841 does, and is the only one > 500
I did not capture that part of the question.
Good looking out, Reiny.
Thanks for the correction.
Let's say the ones digit is represented by "x".
Then the tens digit is twice the ones digit, so it would be "2x".
And the hundreds digit is twice the tens digit, so it would be "4x".
Now, we can represent the three-digit number as 4x2x.
The number is greater than 500, so we have the inequality:
4x2x > 500
Solving this inequality will give us the range of values for x, and consequently, the possible three-digit numbers.