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  3. 10th Class
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  5. Pair of Linear Equations in Two Variables

10th Class Mathematics Pair of Linear Equations in Two Variables Question Bank Linear Equation in two Variables

  • question_answer
    Shyam has twice as many sisters as he has brothers. If Reena, Shyam's sister has the same number of brothers as she has sisters, then Reena has how many brothers?

    A)  6                                

    B)  3             

    C)  1                                

    D)  5

    Correct Answer: B

    Solution :

    (b): Mind of Mathematician This is a mental ability question. Considering Shyam / Reena?s parents have ?x? sons and ?y? daughters. \[\Rightarrow \]Sons ? Shyam = x ? 1, Daughters ? Reena = y ? 1 Now, 2 (x ? 1) = y and y ? 1 = x


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