A shopkeeper sells an article, whose cost price is Rs. 400, for Rs. 462 including sales tax @ 5%. Find the profit percentage of the shopkeeper.

Ashok sold an article, whose cost price is Rs. 300, for Rs. 351 including sales tax @8%. Find his profit percentage.

A shopkeeper sells an article, whose cost price is Rs. 500 for Rs. 616 including a sales tax @x%, and for a profit of Rs. 50. Find x.

A shopkeeper sold an article, costing Rs. 360, for Rs. 495 including a sales tax of y% at a profit of Rs. 90. Find y.

A shopkeeper sells an article for Rs 21,384 including 10% tax. However, the actual rate of Tax is 8%. Find the extra profit made by the dealer.

A shopkeeper sells an article at the listed price of Rs 1,500 and the VAT is 12% at each stage of sale. If the shopkeeper pays a VAT of Rs 36 to the Government, what was the price, inclusive of Tax, at which the shopkeeper purchased the article from the wholesaler ?

If a shopkeeper sells an article for Rs. 420 and makes a profit of 20%, find its cost price.