5 kg of metal A and 20 kg of metal B are mixed to form an alloy. The percentage of metal A in the alloy is `20 %` b. `25 %` c. `40 %` d. none of these

Percentage of silver in the alloy of German silver

Percentage of silver in the alloy german silver is :

40 % of 4. 5+? % of2/3=20 % of 10 20 b. 25 c. 30 d. 35 e. none of these

Magnalism is an alloy of aluminium and magnesium. What is the percentage of of magnesium in this alloy?

Magnalism is an alloy of aluminium and magnesium. What is the percentage of of magnesium in this alloy?

An alloy of metals X and Y weighs 12 g and contains atoms X and Y in the ratio of 2:5. The percentage by mass of X in the sample is 20. If atomic mass of X is 40, what is the atomic mass of metal Y?

Two metals X and Y are to be used for making two different alloys. If the ratio by weight of X : Y in the first alloy is 6 : 5 and that in the second is 7 : 13, how many kg of X metal must be melted along with 11 kg of the first alloy and 20 kg of the second so as to produce a new alloy containing 40% of metal Y?