If the price of pen is discounted by 40%, for Tk. 120 you can buy 4 more pens than you could buy at the original price. How many pens could be bought for Tk. 120 at the original price?

A 6
B 8
C 10
D None

Correct Answer: 6

40% of 120 = 48Price of 4 pen is 48Then 1 pen = 12 tk After 40% reduction,60% = 12tk100% = 20 tkAt original price 120/20= 6 pen can be bought.
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