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    Question

    The Least Common Multiple of two prime numbers x and y,

    (x < y) is 145. Then what is the value of (10x -y)?Β 
    A 21 Correct Answer Incorrect Answer
    B 30 Correct Answer Incorrect Answer
    C 27 Correct Answer Incorrect Answer
    D 40 Correct Answer Incorrect Answer

    Solution

    LCM of primes For two primes, LCM = product. So, x Γ— y = 145. Factorize 145 145 = 5 Γ— 29 (both primes). Thus, x = 5 ,y = 29 (since x

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