Mathematics, 14.07.2020 02:01 simegustachocolate

Mrs Lim bought a number of plates at an average price of $6. She decided to buy another plate which cost $18. The average price of all the plates then became $8. What was the total number of plates Mrs Lim bought in all?

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Mrs Lim bought a number of plates at an average price of $6. She decided to buy another plate which...

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