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

  • question_answer
    Two toy trains start at the same time. The first one stops after every \[5\] seconds and the second one stops after every \[4\] seconds. How many times do they stop together in \[1\] minute?

    A)  \[4\]                            

    B)                     \[2\]                

    C)                     \[3\]                            

    D)                     \[5\]

    Correct Answer: C

    Solution :

    Common multiples of \[4\] and \[5\] are\[20,\,\,40\] and\[60\], which are \[3\] in number within a minute.


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