New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A jar contains a mixture of mango juice and water in

    the ratio of 5:2. 84 litres of the mixture was taken out and 34 litres of water was added to it. If the water was 40% in the resultant mixture, what was the initial quantity of the mixture in the jar?
    A 150 ltr Correct Answer Incorrect Answer
    B 262.5 ltr Correct Answer Incorrect Answer
    C 162.5 ltr Correct Answer Incorrect Answer
    D 312.5 ltr Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Mango + Water = 5x + 2x Total = 7x  84 litre of mixture taken out  Mango = (5 x)/(7 x)×84 = 60 Mango in mixture = 5x – 60  Water in mixture = 2x/(7 x)×84 = 24 Water = (2x – 24) + 34 = 2x + 10  According to the question (2x + 10)/(5x - 60)=40/60  120 x + 600 = 200x – 2400  80 x = 3000 ∴ x = 37.5 Initial quantity of mixture = 5 x  + 2x  = 7 x Initial quantity of mixture = 7 (37.5) = 262.5 litres 

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