Question
PSLE
Mr Chan bought some guppies at $10 each. He also bought an equal number of neon tetras at a different price. The average price of a guppy and a neon tetra was $9. Mr Chan paid $18 more for the guppies than the neon tetras. How many guppies did he buy?
2 m

Click button first when a symbol is required. X

PSLE
Mr Chan bought some guppies at $10 each. He also bought an equal number of neon tetras at a different price. The average price of a guppy and a neon tetra was $9. Mr Chan paid $18 more for the guppies than the neon tetras. How many guppies did he buy?