Question

a piece of alloy contains brass and bronze mixed in the ratio 7:6 respectively. the alloy is melted in a furnance and 91g is taken out of it and replaced with 60g of bronze in alloy. forming the ratio as 3:. find the initial quantity of alloy​

Answer 1

Step-by-step explanation:

Brass is an alloy of copper and zinc; bronze is an alloy containing 80 per cent of copper, 4 of zinc, and 16 of tin. A fused mass of brass and brozen is found to contain 74 per cent. of copper, 16 of zinc, and 10 of tin : find the ratio of copper to zinc in the composition of brass.What would you like to ask?

MATHS

avatar

Asked on November 22, 2019 by

Sujaritha Katni

Brass is an alloy of copper and zinc; bronze is an alloy containing 80 per cent of copper, 4 of zinc, and 16 of tin. A fused mass of brass and brozen is found to contain 74 per cent. of copper, 16 of zinc, and 10 of tin : find the ratio of copper to zinc in the composition of brass.

Help best friend

Study later

ANSWER

Let the proportion of Copper and Zinc in Brass be x:y

Also, let the amount of brass and bronze in the fused mass is m and n respectively

Percentage of Tin in the fused mass =m×0+n×16=(m+n)×10⟹10m=6n⟹

n

m

=

5

3

Percentage of Zinc in the fused mass =m×y+n×4=(m+n)×16⟹(y−16)m=12n⟹

y−16

12

=

n

m

=

5

3

⟹3y−48=60⟹y=36

Also, x+y=100⟹x=64

Therefore Ratio of Copper and Zinc in Brass is 64:36

Answer 2

Answer:

64:36 7 is your answer

Step-by-step explanation:

pleased like me okkk