A person has planned to sell his old type writer for ₹4500, he would lose 10%. To gain 20% of profit, he should sell it for:
Given selling price=Rs 4500
loss percent=10%
SP=0.9 CP
4500=0.9CP
CP=4500/0.9
CP=Rs 5000
Given he wants to get 20% profit
Therefore SP=1.2 CP
SP=1.2*5000
SP=Rs 6000
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