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7th Class Mathematics Simple Equations Question Bank Simple Equations

  • question_answer
    7 subtracted from \[\frac{5}{2}\]of a number results in 23. What is the number?

    A)  \[-10\]                

    B)         \[10\]

    C)  \[12\]                    

    D)         \[-12\]

    Correct Answer: C

    Solution :

       Let the number be x. \[\Rightarrow \] \[\frac{5x}{2}-7=23\] \[\Rightarrow \] \[\frac{5x}{2}=23+7\] \[\Rightarrow \] \[x=30\times \frac{2}{5}=12\]


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