If the price of an article is increased by 25% and then decreased by 20%, the net change in the price is -
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
3 (No change)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Let,
The price of an article is 100 Tk.
If the price increased by 25%,
So, the new price will be after increase = 100 + {100 × (25/100)} Tk.
= 100 + 25 Tk.
= 125 Tk.
Then the new price decreased by 20%,
So, the new price will be after decrease = 125 - {125 × (20/100)} Tk.
= 125 - 25 Tk.
= 100 Tk.
∴ The net effect on the price of the article is = (100 - 100)
= 0 Taka
So, after both the increase and the decrease, the price remains the same.
