Question
PSLE
Mr Kong bought some goldfishes at $4 each. He also bought an equal number of swordtails at a different price. The average price of a goldfish and a swordtail was $3. Mr Kong paid $10 less for the swordtails than the goldfishes. How many goldfishes did he buy?
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PSLE
Mr Kong bought some goldfishes at $4 each. He also bought an equal number of swordtails at a different price. The average price of a goldfish and a swordtail was $3. Mr Kong paid $10 less for the swordtails than the goldfishes. How many goldfishes did he buy?