Which rate gives the best price. 10 sheets for 2 dollars , 6 sheets for 0.60¢, 3 sheets for 0.60¢ or 5 sheets for 1 dollar show work or explain

10 sheets for a $2 means each costs $0.20
6 sheets for $0.60 means each costs $0.10
3 sheets for $0.60 means each costs $0.20
5 sheets for $1 means each sheet costs $0.20
So the answer is 6 sheets for $0.60 since that is the cheapest amount.
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