Question
PSLE
Mr Chong bought some neon tetras at $9 each. He also bought an equal number of catfishes at a different price. The average price of a neon tetra and a catfish was $7. Mr Chong paid $36 more for the neon tetras than the catfishes. How many neon tetras did he buy?
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PSLE
Mr Chong bought some neon tetras at $9 each. He also bought an equal number of catfishes at a different price. The average price of a neon tetra and a catfish was $7. Mr Chong paid $36 more for the neon tetras than the catfishes. How many neon tetras did he buy?