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Grassin a field can completely feed 20 cows or 30 goats for a day. The same field is sufficient to feed 8 cows and 12 goats for1). \(1\frac{1}{2}\) days2). \(1\frac{1}{3}\) days3). \(1\frac{1}{9}\)days4). |
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Answer» ⇒ 20 cows or 30 goats can eat GRASS for 1 day from field ⇒ 30 goats will eat grass for 1 day ⇒ 1 goat will eat grass for 30 DAYS ⇒ 20 cow = 30 goats ⇒ 1 cow = (30/20) ⇒ 1 cow = 3/2 ⇒ Let x day for 8 cow and 12 goats same field will be sufficient ⇒ 8 cow + 12 goats = 8 (3/2) + 12 ⇒ 8 cow + 12 goats = 24 goats ⇒ 1 goat will eat grass for 30 days ⇒ 24 goats will eat grass for (30/24) ⇒ 24 goats will eat grass for (11/4 days) ∴ 8 cows and 12 goats eat grass for (11/4 days) |
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