Question

Q. for making a paper envelope, a rectangular paper of 15 cm × 12 cm is required find the total cost of 5 such envelopes at 2 paisa per cm(2)

Answer 1

Answer:

area of reactangle = l × b

= 15 × 12 = 180 cm^2

and than total number of envalope = 5

than area of total 5 envelope = 900 cm^2

one envalope rupees 2 paisa per Cm^2

= total 5 envalope = 1800 paisa