alleryA 16 kg alloy has zinc and copper in the ratio 5:3. How much zinc must be added to make it 3:1?
A6 kg
B10 kg
C12 kg
D8 kg
Answer & Solution
Correct answer: D. 8 kg
Zinc is 10 kg and copper 6 kg; for 3:1 zinc must be 18 kg, so 8 kg is added.
Keep practising Mixture and Alligation
Browse all Mixture and Alligation questions for SSC CGL, or explore more Quantitative Aptitude topics.
Related questions
A 40 L vessel of pure milk has 10 L removed and replaced by water. What is the milk to watHow much water is in 50 L of a milk and water mixture where milk to water is 7:3?A 24 L mixture has milk and water in the ratio 5:3. How much milk is in it?A seller mixes water with milk costing Rs 30/L and sells at Rs 30/L. If 1 L of a 5 L mix i20 boys average 15 years and 30 girls average 20 years. What is the average age of all 50?30 students average 40 marks and another 20 average 65 marks. Find the combined average.Boys average 60 kg and girls 50 kg; the class average is 56 kg. What is the boys to girls How much flour at Rs 8/kg must be mixed with 30 kg at Rs 14/kg to get a blend at Rs 12/kg?