What was the original price of a pen (in Taka) if it is bought for Tk. 100 at 20% discount?
সমাধান
সঠিক উত্তর: Option E
20% discount means (100 - 20) or, 80% of original price.
Thus,
80% of the original price is 100 tk
100% of the original price is 100/.8 tk
= 125 tk
