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A tank was filled with 20L of water. However, there was a hole and 2/3L was leaked out every minute.How long did it take for the tank to become empty?

  • maths -

    FIRST,look for the unit

    L----Litre

    leak?L per minute-------L m^-1

    that mean

    L/ L m^-1

    =1/ m^-1

    =m

    therefore,
    ans:
    20/(2/3)
    =30minutes.

  • maths -

    yup, that's what i got, thanks for verifying

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