Question

How many envelopes of size 15 cm x 20 cm can be made out of a paper of size 4 m×6 m step by step explanation​

Answer 1

Answer:

Area of Big paper

= 4m × 6m

= 400 cm × 600cm

= 240000 cm2

Area of small paper

= 15cm × 20 cm

= 300 cm2

Let number of envelope be x . Then area of x should cover bigger paper.

$300x = 240000 \\ \\ x = \frac{240000}{300} = 800 \: \: env.$