In 2 kg mixture of copper and aluminium, 30% is copper. How much aluminium powde

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In 2 kg mixture of copper and aluminium, 30% is copper. How much aluminium powder should be added to the mixture so that the quantity of copper becomes 20% ?

Options:

A . 900 gms

B . 800 gms

C . 1000 gms

D . 1200 gms

Answer: Option C

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