Ping pong balls sell for $.10 each.  Johnny buys 10000 for a prank.  He gets a 30% discount for buying in such large bulk.  How much does he pay?
Топи пинг-понг барои $0.10 ҳар кадом фурӯхта мешавад. Ҷонни 10000 дона барои шӯхӣ мехарад. Вай барои харидани ин миқдори калон 30% тахфиф мегирад. Вай чанд пул пардохт мекунад?
How much do the ping pong balls cost? ** The ping pong balls cost 10000*.10=$<<10000*.10=1000>>1000
How much does Johnny get off? ** So the discount is 1000*.30=$<<1000*.30=300>>300
How much does Johnny pay? ** So he pays 1000-300=$<<1000-300=700>>700.
#### 700
How much do the ping pong balls cost? ** The ping pong balls cost 10000*.10=$<<10000*.10=1000>>1000  
How much does Johnny get off? ** So the discount is 1000*.30=$<<1000*.30=300>>300  
How much does Johnny pay? ** So he pays 1000-300=$<<1000-300=700>>700.  
#### 700