A year ago the price of a toothbrush and the price of a comb were both Tk. 50. The price of the toothbrush was increased by 20% while the price of the com was decreased by 10%. What is the difference in Taka between the current price of the toothbrush and the comb?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
2 (15)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Original price of the toothbrush: Tk. 50
Price increase: 20%
New price of toothbrush = 50 + {(20/100) × 50} = 50 + 10 = Tk. 60
Original price of the comb: Tk. 50
Price decrease: 10%
New price of comb = 50 - {(10/100) × 50} = 50 - 5 = Tk. 45
Difference = 60 - 45 = Tk. 15
The difference in Taka between the current price of the toothbrush and the comb is Tk. 15.
