Question

Hotel a ore contains 12 copper how many kilograms of ore the requird to get 69 kg of copper

Answer 1

Answer:that is

.8797

Explanation:

98

Answer 2

Dear Student,

◆ Correct question -

An ore contains 12% copper. How many kilograms of those are required to get 69 kg of copper ?

◆ Answer -

Let x be mass of ore required.

Percentage of copper in ore is given by -

Cu% = Mass of Cu × 100 / mass of ore

12 = 69 × 100 / x

x = 6900 / 12

x = 575 kg

Hence, 575 kilograms of copper ores are required.

Thanks dear. Hope this helps you..