1.

By selling an article for Rs. 450, a man loses 10%. The gain or loss per cent if he sells it for Rs. 540 is1). Gain 8%2). Loss 8%3). Gain 9%4). Loss 9%

Answer»

We have SP = Rs 450

Loss % = 10 %

⇒ CP = SP× 100 / (100 – Loss %)

⇒ CP = 450 × 100 / (100 – 10)

⇒ CP = 450 × 100/90

⇒ CP = Rs 500

⇒ New SP = Rs 540

GAIN = 540 – 500

 = Rs 40

⇒ Profit % = (Profit / CP) × 100

 = (40/500) × 100

 = 8%


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