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InterviewSolution
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An auditorium is 46 m long and 3 m broad. The area of its doors and windows is 50 sq meter. Find the height of the auditorium if the cost of preparing the walls is Rs. 5000 at 9 per squaremetre. |
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Answer» total cost =areaxratehence area=5000/9=555.55m^2now area excluding doors and windows as it won't be painted is 555.55-50=505.55m^2hence nowl=46m and b=3m h=?area=2(lb+bh+hl)505.55=2(46*3+3*h+h*46)252.77=138+3h+46h114.77=49hh=2.34m |
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