For an open cubical box of edge a units, the cost of painting it from the outside at the rate of Rs b per sq unit is

For an open cubical box of edge a units, the cost of painting it from

1.	For an open cubical box of edge a units, the cost of painting it from the outside at the rate of Rs b per sq unit is
Answer» For an open cubical box of edge a units, the cost of painting it from the outside at the rate of Rs b per sq unit is