In a cow farm, the ratio of the number of cows which give milk to the number of cows which don’t is 8 : 3. The number of cows which don’t give milk is 144. How many cows do given milk? And how many cows are there in all?
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The ratio of the number of cows which give milk to the number of cows which don’t = 8:3
8x + 3x = total cows
number of cows which don’t give milk =3x = 144
x = 144/3
x = 48
number of cows which give milk = 8x = 48 x 8 = 384
total cows = 8x + 3x
= 384 + 144
= 528
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