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    Question

    Find the largest four-digit number which when divided

    by each of 18, 21 and 24 leaves a remainder of 7.
    A 9061 Correct Answer Incorrect Answer
    B 9583 Correct Answer Incorrect Answer
    C 9621 Correct Answer Incorrect Answer
    D 9987 Correct Answer Incorrect Answer

    Solution

    LCM of 18, 21 and 24.   504   Largest four-digit number = 9999 Largest four-digit number divided by 504. =9999/504 = 19.83 So, the desired number according to the question is. = 504×19+7=9583

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