SOLUTION: Adam bought a number of ping-pong balls in a store in Tennessee, where a 5% sales tax (we wish) is added to every purchase. If he did not have to pay tax, he could have bought 3 mo

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Question 251500: Adam bought a number of ping-pong balls in a store in Tennessee, where a 5% sales tax (we wish) is added to every purchase. If he did not have to pay tax, he could have bought 3 more balls for the same amount of money. How many balls did he buy?
a) 30 b) 45 c) 57 d) 60 e) none of these
Answer by richwmiller(17219) About Me  (Show Source):