<human>:  Axel bought an aquarium that was marked down 50% from an original price of $120. But he also paid additional sales tax equal to 5% of the reduced price. What was the total cost of the aquarium?
<bot>: How much was the aquarium marked down? ** The aquarium was bought for $120 x 50/100 = $<<120*50/100=60>>60 less.
What was the marked down price of the aquarium? ** So the marked down price of the aquarium was $120 - $60 = $<<120-60=60>>60.
How much additional sales tax did Axel pay? ** Axel paid $60 x 5/100 = $<<60*5/100=3>>3 additional for the sales tax.
What was the total cost of the aquarium? ** Therefore, the total cost of the aquarium was $60 + $3 = $<<60+3=63>>63.
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