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1). 139 litres2). 152 litres3). 142 litres4). 150 litres |
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Answer» Percentage of milk in these mixtures will be 35%, 80%, 25% and 55%. Percentage of milk in jar C and D are 25% and 55% and that of water are 75% and 45%; Let TOTAL QUANTITIES in two jars be C and D; According to the question; 0.75C – 0.55D = 21.6 0.25C + 0.45D = 189.6 Solving both the equations; C = 240 litres and D = 288 litres Let z litres water is mixed in jar D to get a new mixture containing 36% milk and 64% water; ∴ 288 × 0.45 + z = (288 + z) × 0.64 ⇒ 0.36z = 288 × 0.19 ⇒ 0.36z = 54.72 ⇒ z = 152 litres ∴ 152 litres water should be mixed in jar D to get a new mixture containing 36% milk |
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