16. The length of a rectangle is 20% more than its breadth. What will be the ratio of the area of a rectangle
to that of a square whose side is equal to the breadth of the rectangle?
17. How many envelopes can be made out of a sheet of paper 125 cm by 85 cm; supposing one envelope
requires a piece of paper of size 17 cm by 5 cm?
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Step-by-step explanation:
17.Area of sheet of paper = l×b
= 125×85
Area of envelope = l×b
= 17×5
No. of envelopes = (area of sheet of
paper) ÷ (area of
envelope)
= (125×85)÷(17×5)
= 125 evelopes
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