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Filling Of Mugs

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Remove 6 liters of oil from a large oil container using only two mugs of 9 liter and 4 liter respectively.

Answer on Monday.

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2 Comments

  • admin says:

    i) Fill the 9 liter mug and pour oil from it into the 4 liter mug to fill it. Now, oil left in the 9 liter mug is 9-4=5liter.
    ii) Empty the 4 liter mug and again pour oil from the 9 liter mug to fill the 4 liter mug. Now oil left in the 9 liter mug is 1 liter.
    iii) Empty the 4 liter mug again and pour the remaining 1 liter of oil from the 9 liter mug to it. Now, the 4 liter mug contains 1 liter of oil and the 9 liter mug is empty.
    iv) Fill the 9 liter mug again and fill the 4 liter mug using it.

    Space left in the 4 liter mug is 3 liter hence the 9 liter mug now contains 6 liter of oil.

  • Atashi says:

    Tilt the 4L jug so that you have exactly 2L.
    Pour in 9L jug.
    Do this 3x.

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