A megastore is offering 20% discount on all grocery items. Sakshi bought one grocery item marked at Rs.400. What is its cost price if the store earned a profit of 25% after giving the discount?

Rs. 256

Discount given = 20%

Profit earned after discount = 25%

Marked price = 400

Cost price = 400 × \(\frac{80}{100}\) × \(\frac{4}{5}\) = Rs. 256