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6th Class Mathematics Ratio and Proportion Question Bank Ration and Proportion

  • question_answer
    The ratio of the volume of water in Bottle P to the volume of water in Bottle Q is 3 : 4. Rajeev drank 40 mL of the water from Bottle P and the ratio then became 13 : 20. How much water was there in bottle P at first?

    A)  60 mL

    B)  80 mL

    C)  300 mL

    D)  400 mL

    Correct Answer: C

    Solution :

    Let the quantity of water in bottle \[\text{P}=3x\]and that of in bottle \[Q=4x\]. According to question, \[\Rightarrow 20(3x-40)=4x\times 13\] \[\Rightarrow 60x-800=52x\Rightarrow 8x=800\Rightarrow x=100\] So, quantity of water in bottle \[\text{P}=3\times 100\] = 300 mL


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