Question

"An alloy contains 40% zinc , 25% copper and the rest is nickel. Find in grams the quantity of each of the contents in a sample of 1 kg alloy. ​"

Answer 1

Answer: Percentage of Copper = 32%

Percentage of Zinc = 40%

So, Percentage of Nickel = 100-72

                                         = 28% 

So, In 1000g of alloy

      Copper = 1000*32/100 = 320g

      Zinc      = 1000*40/100 =  400 g

   and, Nickel = 1000*28/100 = 280 g

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