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 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?

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?

X% of y is y% of a.4% of a b.5% of a c.20% of a d.none of these

A and B are two alloys of copper and tin prepared by mixing the respective metals in the ratio of 5:3 and 5:11 respectively. If the alloys A and B are mixed to form a third alloy C with an equal proportional of copper and tin, what is ther ratio of alloys A and B in the new alloy C?