how many envelopes of size 25 CM x 15 CM can be made from a rectangular sheet of size 4 x 1.2
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Answer:
area of the rectangular sheet is 4.8 m²
area of an envelope =25×15
=375 cm²
=0.375 m²
the number of envelope that can be made
=4.8÷0.375
=12.8
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