Question

The length of a rectangular wooden board is thrice its width. The width is of the board is 120 cm , find the cost of framing it at the rate of$5/20cm

Answer 1

Answer:

$ 240

length= 360cm

breadth=120 cm

perimeter=2(l+b)

=2(360+120)cm

=2(480)cm

=960cm

Cost of framing 960m @ $5/20cm= $240