how many envelopes can be made out of a sheet of paper 72cm by 48cm,if each envelopes requires a paper of 18cm by 12 cm
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Step-by-step explanation:
area of sheet =48 ×72 = 3456
area of each envelope = 18×12= 216
no of envelope = 3456÷216= 16
so total 16 envelope of 18 by 12 are made
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