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 251840: 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)   (Show Source): You can put this solution on YOUR website!
p=pingpong balls
1/20p=3
p=60

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