Two second-hand mobile phones are sold for ₹1820 each. One is sold at a 30% gain and the other at a 30% loss. What is the overall loss percent on the two sales?

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Accepted Answer

9. CPs are 1820 ÷ 1.3 = ₹1400 and 1820 ÷ 0.7 = ₹2600, total ₹4000. Total SP = ₹3640, so the loss is ₹360 = 9%. (Shortcut: x²/100 = 900/100 = 9%.)

Two second-hand mobile phones are sold for ₹1820 each. One is sold at a 30% gain and the other at a 30% loss. What is the overall loss percent on the two sales?

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