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    Question

    How many digits are required to number a book containing

    300 pages?
    A 492 Correct Answer Incorrect Answer
    B 792 Correct Answer Incorrect Answer
    C 342 Correct Answer Incorrect Answer
    D 256 Correct Answer Incorrect Answer

    Solution

    As we know number of digits required to write first 100 natural numbers = 192 & after 100, 101 to 200, each number is of 3 digits so from 101 to 300 total numbers of digits required = 200×3= 600 So total digits required to number a book containing 600 pages = 192 + 600 = 792

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