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  5. Linear Equations in Two Variables

9th Class Mathematics Linear Equations in Two Variables Question Bank Linear Equation in two Variables

  • question_answer
    Crate of mangoes contains one bruised mangoes for every forty mangoes in the crate. If 4 out of every 5 bruised mangoes are considered unsalable and there are 10 unsalable mangoes in the crate, then how many mangoes are there in the crate?

    A)  200                            

    B)  250

    C)  300                           

    D)  500

    Correct Answer: D

    Solution :

    (d): Let the total no. of mangoes in the crate be x, Then, the number of bruised mangoes \[=\frac{1}{40}x\] Number of unsalable mangoes\[=\left( \frac{4}{5}\times \frac{1}{40}x \right)=\frac{x}{50}\] \[\therefore \frac{x}{50}=10,x=500\]


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