Answer :
The cost of 3 pounds =$2.40
For the cost of 1 pound, divide the cost of three pounds noodles with 3.
[tex]\begin{gathered} Cost\text{ of 1 pound noodles=}\frac{2.40}{3} \\ \text{Cost of 1 pound noodles=\$0.8} \end{gathered}[/tex]The student is not correct ,
The cost of unit pound is $0.8