Question

How many envelopes can be made out of a sheet of paper 200cm by 80cm,

supposing

one envelope requires a piece of paper 50cm by 20cm.​

Answer 1

Given :   a sheet of paper 200cm by 80cm,

one envelope requires a piece of paper 50cm by 20cm.​

To Find   : How many envelopes can be made

Solution:

a sheet of paper 200cm by 80cm,

one envelope requires a piece of paper 50cm by 20cm.​

Number of envelopes can be made  = 200 x 80 / (50 x 20)

= 4 * 4

= 16

16 envelopes can be made out of a sheet of paper 200cm by 80cm  if  

one envelope requires a piece of paper 50cm by 20cm.​

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Answer 2

HELLO DEAR,

GIVEN:-

A paper sheet of dimension 200cm by 80 cm.

And one envelope required a piece of paper 50cm by 20 cm.

To Find :-

How many envelope made by paper sheet.

SOLUTION:-

Lenth of paper sheet = 200cm .

And lenght of envelope = 50cm.

Width of paper sheet = 80cm.

And width of envelope = 20cm.

So, number of envelope made by paper sheet is depends of the how much lenght and width covered by envelope not the area.

Therefore,

=> (length of paper sheet/ length of envelope) × ( width of paper sheet / width of envelope )

=> ( 200 / 50 ) × ( 80 / 20 )

=> ( 4 × 4 )

=> 16 envelope.

ANSWER = 16 envelope made by paper sheet.

I HOPE IT'S HELP YOU DEAR,

THANKS.