If a seller proposes to sell his goods at the cp but uses a fake mask of 960gm for 1kg. find his gain percentage.Please friends answer it. its very urgent. ​

• A seller proposes to sell his goods at the Cost Price but uses a fake mass of 960 gm for 1 kg.

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• Gain percentage = ?

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☯ Let the Cost price of 1 kg be ₹100

• As he proposes to sell the product at Cost price his selling price for 1 kg is ₹100⠀

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[ Refer to the attachment ]

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• By substituting the values, we got the value Cost price as 96.

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* C.P. = ₹96 and S.P = ₹100

→ Gain = S.P. - C.P.

→ Gain = 100 - 96

→ Gain = ₹4⠀

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We know that,

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Putting the values,

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Hence,

• The Gain % is

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Note :

• C.P. denotes Cost price
• S.P. denotes Selling price