Question

an alloy contains 38% copper 28% zinc and rest is Nickel find each quantity in grams in a sample of 1 kg alloy​

Answer 1

Step-by-step explanation:

1kg=1000gm

Copper=38%of1000=380

Zinc=28%of1000=280

Now

Rest=1000-(380+280)=1000-660=340

Answer 2

Answer:

here is the answer ..!!

You can take zinc as x. The formula is 40%+32%+x%=100%. It is further expanded as 72%+x%=100%. The next step is x%=100%-72%. The mass is 28%. You can convert the mass into grams.

To get the precise answer, we need to convert percentage into decimal. For that, you need to divide 28 by hundred. Finally, you can find the mass as 0.28g

hope it helps..!!

do mark it as brainilist..!!