A seller bought some pens at a rate of 5 for Tk. They were separated into two stacks, one of which was sold at a rate of 3 for Tk. 100 and the other at a rate of 6tk for Tk. What was the ratio of the number of pens in the two sacks if the seller made no overall profit and loss?
সমাধান
সঠিক উত্তর: Option A