what is the original price of pack of milk powder which Zahid has bought for taka 100, after receiving a discount of 20% ?
A
Tk. 80
B
Tk. 120
C
Tk. 200
D
Tk. 125
Correct Answer: Tk. 125
Let the original price be A. Then, A - 20% of A = 100 or, A - A/5 = 100 or, 4A/5 = 100 or, A = 100×5 / 4 = 125 TK