5. How many envelopes can be made out of sheet of paper 3 m 24 cm by 1 m 72 cm, if each
envelope requires a piece of paper 18cm by 12 cm
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Step-by-step explanation:
Lengh of sheet = 3m 24cm =324cm
breadth of sheet =1m72 cm= 172cm
Area of Sheet =L *B = 324* 174 =56376
Area of envelope =L*B =18*12= 216
No. of envelopes =Areof sheet/Area of envelope
= 56376/216
261 envelopes
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