Surdeep bought a machinery for ₹ 800 after a $20\%$ discount on the company price. He fixes the selling price to earn $10\%$ profit on the original company price. Find the selling price.
$X=$ Marked price of Laptop; $Y=$ Marked price of A.C. Decide the relation between $X$ and $Y$.
$X=$ Profit amount of Mobile; $Y=$ Discount amount of Mobile. Decide the relation between $X$ and $Y$.
$X=$ Cost price of Cooler; $Y=$ Profit amount of Laptop. Decide the relation between $X$ and $Y$.
$X=$ Average cost price of A.C and Mobile; $Y=$ Cost price of Laptop. Decide the relation between $X$ and $Y$.
A shopkeeper bought 30 kg of rice at the rate of Rupees 90 per kg. He sold forty percent of the total quantity at the rate of Rupees 60 per kg. Approximately at what price per kg should he sell the remaining quantity to make 25% overall profit?