Question
PSLE
Mr Yang bought some fighting fishes at $6 each. He also bought an equal number of catfishes at a different price. The average price of a fighting fish and a catfish was $5. Mr Yang paid $20 less for the catfishes than the fighting fishes. How many fighting fishes did he buy?
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PSLE
Mr Yang bought some fighting fishes at $6 each. He also bought an equal number of catfishes at a different price. The average price of a fighting fish and a catfish was $5. Mr Yang paid $20 less for the catfishes than the fighting fishes. How many fighting fishes did he buy?