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6th Class Mathematics Ratio and Proportion Question Bank Ratio, Proportion & Unitary Method

  • question_answer
    First, second, third terms of a proportion are respectively 20, 18 and 40. Find its fourth term.

    A)  36                              

    B)  34           

    C)  35                  

    D)  37

    Correct Answer: A

    Solution :

    \[20:18::40:x\] \[20x=40\times 18\]                 \[x=36\]


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