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8/8 Number series

Which seven-digit number satisfies all seven conditions? The first digit is the number of zeros, the second digit is the number of ones, the third digit is the number of twos, and so on.

If the first digit is '5', the sixth digit should be at least '1'.

If the last digit is '1', the second digit should be at least '1'.

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What is three times three?

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steelesays...

Since option 'C' contains two '1s', the second digit should be '2'.

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