Question
PSLE
Mr Kong bought some swordtails at $6 each. He also bought an equal number of mollies at a different price. The average price of a swordtail and a molly was $4. Mr Kong paid $16 more for the swordtails than the mollies. How many swordtails did he buy?
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PSLE
Mr Kong bought some swordtails at $6 each. He also bought an equal number of mollies at a different price. The average price of a swordtail and a molly was $4. Mr Kong paid $16 more for the swordtails than the mollies. How many swordtails did he buy?