how many envelop can be made out of a sheet of paper 384 cm by 172 cm, of each envelop requires a piece of paper of size 16 cm by 12 cm.
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Answer:
Area of sheet = (384×172)cm2
= 66048 cm2
Area of paper for 1 envelope
= (16×12)cm2
=192cmw
∴ Number of envelopes can be made
=192÷
66048
=344
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