Question: Mrs Tan has a certain sum of money to buy fruits. She can buy

*n*mangoes at $1.60 each and have $0.80 left. Alternatively, she can buy (

*n*+10) apples at $0.70 each and have $0.10 left.

(i) How many mangoes did Mrs. Tan buy?

(ii) How much money did Mrs. Tan have for buying fruits?

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