the cost of painting a rectangular wall at Rs 30per m² is Rs 1800. find the perimeter of the wall if it is know that the hight of the wall is 4m.
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48 meter is the answer
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so acc to question
total cost is given =1800
cost of 1m sq is =30
so area is =1800/30
=60 m sq
area of rectangle =l×b
60=4×b
b=15 m
so perimeter of rectangle is 2(l+b)
2(15+4)
=>38 m
hope it will help yoy
total cost is given =1800
cost of 1m sq is =30
so area is =1800/30
=60 m sq
area of rectangle =l×b
60=4×b
b=15 m
so perimeter of rectangle is 2(l+b)
2(15+4)
=>38 m
hope it will help yoy
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