A room is 20 m long and 15 m broad. It has to be carpeted after leaving a margin of 2 m all around it. Find the area of the carpet required and the cost of carpeting it at 800 per m².
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Step-by-step explanation:
Length = 20m
Breadth = 15m
Area of room = l×b
= 20×15-8
=292 square meters
cost of carpeting = 292×800
= ₹ 233600
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