Question

an alloy of matel contains 45%nickel 25%copper and rest is zinc how much zinc is there in 3 kg alloys?​

Answer 1

Answer:

0.9kg

Step-by-step explanation:

zinc % = 100 - 45-25 = 100-70=30%

let the percentages be x

hence, 45x + 25x + 30x = 3kg

100x = 3000g

x = 3000/100

x = 30g

therefore, zinc present in the  3kg alloys is 30 * 30 = 900g

answer: there is 0.9kg of zinc in the three alloys

Answer 2

Answer:

According to the question,

Let the alloy contains 45% nickel, 25% copper and

rest in zinc.

Zn=100−45−25

=30%

Since 1kg=1000gm

Therefore,

45×1000=450gofNi;

25×1000=250gofCu,

30×1000=300gofZn

Hence,  3kg

3000g×3=900gofZn present in 3 kg of alloy.

Step-by-step explanation:

please give me a point this is your answer please make me brainless I hope I can help you