Question

10 gram of an alloy of metals A and B contains 7.5 grams of metal A and the rest is metal B.Find the ratio between the weight of metal B and the weight of the alloy

Answer 1

Step-by-step explanation:

A + B = 10

A = 7.5

B = 10-7.5

B = 2.5

Ratio of B to ratio of alloy

2.5:10

25:100

1:4

Answer 2

Answer:

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Step-by-step explanation:

(i) weight of metal B = ( 10 - 7.5 ) g

= 2.5 g

Ratio :-

weight of metal A : weight of metal B

=> 7.5 : 2.5

=> 3 : 1

(i) answer = 3:1

(ii)weight of metal B = 2.5 g

weight of alloy. = 10 g

Ratio :-

2.5 : 10

=> 1 : 4

(ii) answer = 1:4