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A trader makes a profit of 20 percent on a radio which he sold for #144.calculate the cost price of the radio​

Answer :

You find the profit the trader made then subtract it from the total sos it’s

$144 x 0.2 = $28.8 (profit)

$144 - $28.8 = $115.2 (price of radio)

So the price of the radio is $115.20

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