Question
PSLE
Mr Pang bought some swordtails at $8 each. He also bought an equal number of neon tetras at a different price. The average price of a swordtail and a neon tetra was $7. Mr Pang paid $20 less for the neon tetras than the swordtails. How many swordtails did he buy?
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PSLE
Mr Pang bought some swordtails at $8 each. He also bought an equal number of neon tetras at a different price. The average price of a swordtail and a neon tetra was $7. Mr Pang paid $20 less for the neon tetras than the swordtails. How many swordtails did he buy?