The soil for house plants consists of 12% water. If someone wants to plant flowers that need 187% water in the soil, how many lite

Question

The soil for house plants consists of 12% water. If someone wants to plant flowers that need 187% water in the soil, how many liters of water they need to add to 5kg of soil?

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Eliza 2 months 2021-07-30T05:12:16+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-07-30T05:13:38+00:00

    Given:

    anna bought soil that contains 12% of water .

    she wants to plant a flower that needs 18% of water .

    To Find:

    how much water does she need to pour in 5 kg of soil to plant the flower

    Solution:

    anna bought soil that contains 12% of water

    5 kg of soil

    => Water = (12/100)2  = 0.6 kg

    Let say Water poured   =  W kg or litre

    Total Water = 0.6 + W  kg

    Total Soil = 5 + W kg

    18% of water

    => (18/100)(5 + W)  = 0.6 + W

    => 90 + 18W  =  60 + 100W

    => 30 = 82W

    => W = 30/82

    => W = 0.366 kg or 0.366 litre

    or 3.66 dl

    3.66 dl water to be added

    0
    2021-07-30T05:14:00+00:00

    Given : anna bought soil that contains 12% of water .

    she wants to plant a flower that needs 18% of water .

    To Find : how much water does she need to pour in 5 kg of soil to plant the flower​

    Solution:

    anna bought soil that contains 12% of water

    5 kg of soil

    => Water = (12/100)2  = 0.6 kg

    Let say Water poured   =  W kg or litre

    Total Water = 0.6 + W  kg

    Total Soil = 5 + W kg

    18% of water

    => (18/100)(5 + W)  = 0.6 + W

    => 90 + 18W  =  60 + 100W

    => 30 = 82W

    => W = 30/82

    => W = 0.366 kg or 0.366 litre

    or 3.66 dl

    3.66 dl water to be added

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