Question

For 9 cows, 35 kg 500 g of food supplement is required everyday. In the same proportion, How much will be needed for 12 cows.
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Answer 1

9 cows=35 kg and 500g=35.5kg
1 cow=35.5/9=3.94kg
12 cows=12×3.94=47.28kg approx.

Answer 2

Let the amount of food supplements for 12 cows be x..

No. of cows : amount of supplement :: No. of cows : amount of supplement

9 : 13.5 :: 12 : x
12×13.5 = 9x
x =(12×135)/90
x =18.


Thus,
18 kg of food supplements are required for 12 cows...


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