Question
PSLE
Mr Zhang bought some goldfishes at $9 each. He also bought an equal number of neon tetras at a different price. The average price of a goldfish and a neon tetra was $6. Mr Zhang paid $66 less for the neon tetras than the goldfishes. How many goldfishes did he buy?
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PSLE
Mr Zhang bought some goldfishes at $9 each. He also bought an equal number of neon tetras at a different price. The average price of a goldfish and a neon tetra was $6. Mr Zhang paid $66 less for the neon tetras than the goldfishes. How many goldfishes did he buy?