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Last year, I spent 72 to buy a lot of ping-pong balls to use in geometry class. This year, the price of a ping-pong ball is 6 cents higher, and $72 buys 60 fewer balls. Figure out how many ping-pong balls I bought last year.

Answer :

thanos7999reborn
you would have purchased 300 ping pong balls for 24 cents each last year
and then 240 for 30 cents each this year

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