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5th Class Mathematics Factors and Multiples Question Bank Factors and Multiples

  • question_answer
    \[17,\,\,19,\,\,\text{ }p,\,\,29,\,\,31,\,\,q,\,\,41\] is a list of prime numbers in ascending order. What is the value of\[q-p\]?

    A)  \[60\]                           

    B)                     \[37\]               

    C)                     \[23\]                           

    D)                     \[140\]             

    Correct Answer: D

    Solution :

    List all the prime numbers between\[17\] and\[41\]. Then, find the value of \[p\] and\[q\]. \[17,\,\,19,\,\,23,\,\,28,\,\,31,\,\,37,\,\,41.\] \[\therefore \]      \[p=23,\,\,q=37\].             \[q-p=37-23=14\]


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