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To make a cake batter, flour, milk and water are to be mixed in the ratio 4 ∶ 2 ∶ 3. If 20 cups of flour and 8 cups of milk is available with unlimited water, which of the following product apart from water will be left after preparing maximum possible cake batter?

To make a cake batter, flour, milk and water are to be mixed in the ratio 4 ∶ 2 ∶ 3. If 20 cups of flour and 8 cups of milk is available with unlimited water, which of the following product apart from water will be left after preparing maximum possible cake batter? Correct Answer 4 cups of flour

Sum of ratios = 4 + 2 + 3 = 9

Amount of batter that can be prepared using 20 cups of flour = (20/4) × 9 = 45 cups

Amount of batter that can be prepared using 8 cups of milk = (8/2) × 9 = 36 cups

∵ Milk is available only for 36 cups of batter, maximum possible batter that can be prepared is 36 cups

Amount of flour required for 36 cups of batter = (4/9) × 36 = 16 cups

∴ Amount of flour left = 20 - 16 = 4 cups

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