alleryGold of 18 carat and gold of 22 carat are melted together in equal weights. Carat of the alloy?
A40
B19
C21
D20
Answer & Solution
Correct answer: D. 20
With equal weights the purity is the average, (18 + 22)/2 = 20 carat.
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?