Dimension of Photo Frame:
Length : 28 cm
Breadth : 11 cm
Total Area of photo frame :- L x B
= 28 x 11 cm²
= 308 cm²
Since, Decoration has done along inside of 3cm
Then, Dimension of frame without decoration :
Length : (28 - 2x3) cm = 22cm
Breadth: (11-2x3) cm = 5cm
Area of Frame without decoration = 22x5 cm²
= 110 cm²
Total Area of Decoration = (308-110) cm²
= 198cm²
Cost of Decoration = Rs. 2/cm²
Total cost of decoration = Rs. (2x 198)
= Rs. 396