Keith bought some game cards.
He gave 3/5 of them to his brother and 1/4 of the remainder to his cousin.
After that, Keith had 54 game cards left.
How many game cards did Keith buy?

Answer: D. 180

Keith had 54 cards left, which represents 3/4 of the remainder.
The remainder before the cousin took some was 54 divided by 3/4 = 72 cards.
These 72 cards represent 2/5 of the total (since 3/5 went to the brother).
Total cards = 72 divided by 2/5 = 180 cards.
Final Answer: 180 game cards

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