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. Hope this helps! Let me know if you need any further assistance!