Question

how many envelopes can be made out of a sheet of paper 384 CM by 172 CM if each envelope
requires a piece of paper of size 16 cm by 12 CM

Answer 1

I seem it will be 384/16=24.

Answer 2

length of sheet of paper = 384 cm
breadth of sheet of paper = 172 cm
Area of sheet of paper = l * b
= 384 * 172
= 66048 cm
length of envelope = 16 cm
breadth of envelope = 12 cm
Area of envelope = 16 * 12
= 192 cm
No. of envelope = Area of sheet of paper / Area of envelope
= 66048 / 192
= 344 envelopes