Question
PSLE
Mr Lee bought some fighting fishes at $10 each. He also bought an equal number of neon tetras at a different price. The average price of a fighting fish and a neon tetra was $9. Mr Lee paid $20 less for the neon tetras than the fighting fishes. How many fighting fishes did he buy?
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PSLE
Mr Lee bought some fighting fishes at $10 each. He also bought an equal number of neon tetras at a different price. The average price of a fighting fish and a neon tetra was $9. Mr Lee paid $20 less for the neon tetras than the fighting fishes. How many fighting fishes did he buy?