Question

The price of an item is reduced by 30% of its original price. A week later it is reduced by 20% of the reduced price. The cashier informs you that there has been a total reduction of 23%. Is the cashier using percentages correctly? If not, what is the actual percent reduction from the original price?

Answer 1

imagine that the item cost $100
after a 30% reduction it is now $70
then after a further 20% reduction, how much will it be?