Question

an ore has 2.4 % silver what quantity of ore is required to get 7.2 kg silver

Answer 1

HII FRIEND

HERE IS YOUR ANSWER

silver is 1% =7.2/2.4
silver 1%=3


3×100=300



300

Answer 2

C.Question: an ore has 2.4% of the total silver. what quantity of silver required to get 7.2 kg silver.


Solution:
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quantity of silver available = 2.4%

= 2.4% of 7.2 kg

= (2.4 × 7.2 )/ 100 = 0.1728 kg

quantity of silver required to get 7.2 kg silver

= required quantity - available quantity

= 7.2kg - 0.1728kg

= 7.0272 kg

Answer:
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required quantity of silver = 7.0272 kg