How many envelopes can be made out of a sheet of paper 200 cm by 150 cm, supposing 1 envelope requires 15 cm by 10 cm piece of paper?
Given,
Length of the sheet = 200 cm
Breadth of the sheet = 150 cm
We know that area of a rectangle
= length x breadth
So, area of the sheet = 200 × 150
= 30000 cm2
Given,
Length of the envelope = 15 cm
Breadth of the envelope = 10 cm
So, area of one envelope = 15 × 10
= 150 cm2
Number of envelopes that can be made
= Area of the sheetArea of 1 envelope
= 30000150
= 200 envelopes