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Sonal bought a mobile phone and sold it for Rs. 360 and earns a profit of 20%. Find her cost price?1). Rs. 288 2). Rs. 3063). Rs. 3004). Rs. 298 |
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Answer» Given, ⇒ Profit = 20% ⇒ Profit = [(SP - CP)/CP] × 100 ⇒ 20 = [(360 - A)/A] × 100 ⇒ (20/100) = (360 - A)/A ⇒ A/5 = 360 - A ⇒ A = 300 |
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