How many envelopes can be made out of a sheet of paper 125cm by 85cm,supposing one envelope requires a piece of paper of size and 17cm by 5cm ?
Answers
Answer:
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Given data :
- Size of a sheet of paper 125 cm × 85 cm.
- One envelope requires a piece of paper of size and 17cm × 5cm.
To find : The number of envelopes can be made out of a sheet of paper 125 cm × 85 cm.
Solution : Let, shape of sheet of paper abd envelopes be rectangular.
Now,
→ Length of sheet paper = 125 cm
→ Breadth of sheet paper = 85 cm
→ Length of envelope = 17 cm
→ Breadth of envelope = 5 cm
Now, we use formula of area of rectangle,
→ Area of sheet paper
= Length * Breadth
→ Area of sheet paper
= 125 * 85
→ Area of sheet paper
= 10625 m²
Similarly,
→ Area of one envelope
= Length * Breadth
→ Area of one envelope
= 17 * 5
→ Area of one envelope
= 85 m²
Now, to find the number of envelopes can be made out of a sheet of paper 125 cm × 85 cm.
→ Number of envelopes
= {Area of sheet paper}/{Area of one envelope}
→ Number of envelopes
= 10625/85
→ Number of envelopes
= 125
ANSWER : Hence, 125 envelopes can be made out of a sheet of paper 125 cm × 85 cm.
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