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8th Class Mathematics Rational Numbers Question Bank Rational Numbers

  • question_answer
    Mrs Priya earns Rs. 18000 per month. She spends \[\frac{7}{12}\] on household items and \[\frac{1}{8}\] on rest of the things. The amount she saves is ____.

    A)  Rs.7120                     

    B)         Rs.5250         

    C)         Rs.5520                     

    D)         Rs.6562.50    

    Correct Answer: B

    Solution :

    Savings =Earnings - Sum of expenditures \[\text{=Rs}\text{. 18000-Rs}\text{.}\left[ \left( \frac{7}{12}+\frac{1}{8} \right)\times 18000 \right]\] \[\text{=Rs}\text{. 18000-Rs}\text{.}\left[ \frac{17}{24}\times 18000 \right]=\text{Rs}\text{. 5250}\]


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