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Let the cost price of journey ticket = Rsx 12 months payment of servant = Rs (4080 + x) 1 month payment of servant = Rs(4080+x)/12 And 7 months payment of servant = Rs(4080+x)/12 × 7 (4080+x)/12 × 7 = 1580 + x 28560 + 7 x = 18960 + 12x 5 x = 28560 – 18960 x = 9600/5 x = 1920 So cost price of journey ticket = Rs 1920
A shopkeeper marks an article at 40% above the cost price and gives a discount of 20%. If the cost price of the article is ₹500, find the profit.