Question

18. Ten gram of an alloy of metals A and B contains 7.5 gm of metal A and the rest is
metal B. Find the ratio between :
(i) the weights of metals A and B in the alloy.
(ii) the weight of metal B and the weight of the alloy.
​

Answer 1

Step-by-step explanation:

metal A in 10 gram is 7.5 gram so metal B will be 2.5

therefore ratio between A and B = 7.5/2.5=3/1

3:1

and weight of metal B is 2.5 gram and total weight is 10 therefore ratio between B and total weight is 2.5/10=1/4

1:4

Hope it helps.........

Answer 2

Answer:

3:1 and 1:4

Step-by-step explanation:

Weight of alloy- 10 gram

Metal A= 7.5 gm

Metal B= 10-7.5=2.5 gm

(i) Ratio A:B=7.5:2.5 => A:B=3:1

(ii) Ratio B:Alloy=2.5:10=1:4