Question

how many envelops can be made out of a sheet of paper 125 cm 85cm supposing each envelope requires a piece of paper of side 17 cm by 5 cm ​

Answer 1

length of a sheet=125 cm

breadth of a sheet=85 cm

area= length × breadth

area =125×85

10625 cm

length of the envelope=17 cm

breadth of envelope=5 cm

area=17×5

=85 cm

envelope can be made=10625-85

=10,540

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Answer 2

Answer:

Area of sheet of paper=l×b

=125 × 85

Area of envelope = l×b

= 17×5

No of envelope = (area of sheet of paper)

÷

(area of envelope)

= (125 × 85) ÷ (17 × 5)

= 125 envelope

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