Question

How many envelopes can be made out of a sheet of paper 130 cm by 75cm supposing each envelope reqires a piece of paper of size 15cm by 5 cm​

Answer 1

Dimensions of Paper:

Length = 130 cm

Breadth = 75 cm

Area = Length × Breadth

⇒ Area = 130 × 75

∴ Area of paper = 9750 cm²

Dimensions of Envelope:

Length = 15 cm

Breadth = 5 cm

Area = Length × Breadth

⇒ Area = 15 × 5

∴ Area of envelope = 75 cm²

Now let's find the number of envelopes:

$\sf{Number \: of \: Envelopes \: that \:can \: be \: made = \dfrac{Area \: of \: Paper}{Area \: of \: Envelope}}$

$\implies \sf{Number\:of\:envelopes =\dfrac{9750}{75} = 130}$

Answer:

130 envelopes can be made from the given paper.