In a certain shop, notebooks that normally sell for BDT 1.50 each are on sale at 2 for BDT 2.89 . How much can be saved by purchasing 10 of these notebooks at the sale price?

Correct Answer: BDT 0.55
Price of 1 note books BDT 1.50∴ " " 10 " " " 1.50×10 =  BDT 15Again, Price of 1 note books BDT 2.89∴ " " " 5 " " "  = 2.89×5 = BDT 14.45Saved = 15 - 14.45 = BDT 0.55