Question
PSLE
Mr Soh bought some neon tetras at $10 each. He also bought an equal number of swordtails at a different price. The average price of a neon tetra and a swordtail was $9. Mr Soh paid $6 less for the swordtails than the neon tetras. How many neon tetras did he buy?
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PSLE
Mr Soh bought some neon tetras at $10 each. He also bought an equal number of swordtails at a different price. The average price of a neon tetra and a swordtail was $9. Mr Soh paid $6 less for the swordtails than the neon tetras. How many neon tetras did he buy?