Question

The cost of decorating the frame of a picture with silver lining is rupees 12 per cm . find the cost of lining of its lenght is 20 cm and breadht is 16 cm .​

Answer 1

Step-by-step explanation:

l=20, b=16

Perimeter of rectangle= 2(l+b)

=2(20+16)cm

= 2(36)cm

=72cm

cost of 1cm = 12

cost of 72 cm = 72×12

= rs 864