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How many three digit numbers are there s...

How many three digit numbers are there such that atleast one of their digits is 7?

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  • How many 6-digit numbers are there?

    A
    `=8.5 ` lakh
    B
    `=9.5 ` lakh
    C
    `=8 ` lakh
    D
    `=9 ` lakh
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