A rectangular hall is 22m long and 15.5m broad .A carpet is laid inside the hall leaving all around a margin of 75cm from the walls .Find the area of the carpet and the area of the strip left uncovered. If the width of the carpet is 82cm,find it's cost at the rate of rs 124 per m.
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Answer:
area of carpet=8.3476
area of strip left un covered=300
Step-by-step explanation:
area of strip left un covered=22×15.5-22×0.82
=341-18.04
=322m
cost of rate=18.04×124
=Rs2236.96
perimeter of carpet=2(l+b)
322-300 =2(l+0.82)
22/2 =l+0.82
11-0.82 =l
10.18 =l
area of carpet =l×b
=10.18×0.82
=8.3476m2
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