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7th Class Mathematics Simple Equations Question Bank Simple Equations

  • question_answer
    The sum of two-thirds of a number and one-fifth of the same number is 13. Find the number.

    A)  \[15\]                    

    B)         \[3\]

    C)  \[13\]                  

    D)         \[5\]

    Correct Answer: A

    Solution :

       Let the number be 'n?. Then \[\frac{2n}{3}+\frac{n}{5}=13\] \[\Rightarrow \] \[n=\frac{13\times 15}{13}=15\]


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