Mathematics, 02.01.2021 14:00 Chapo1898
A door 2m*1m is fixed on a wall. The wall is 8.5 long and 2m high. Find the cost of whitewashing the wall ₹40 per square meter.
Answers: 2
![We\ are\ given:\\Dimensions\ of\ the\ door=2m *1m\\Dimensions\ of\ the\ wall=8.5m*2m\\Cost\ of\ whitewashing\ of\ 1m^2=40\ rupees\\Hence,\\First\ lets\ consider\ the\ wall:\\Area\ of\ a\ rectangle= Length*Width\\Here,\\Length\ of\ the\ wall=8.5\ m\\Width\ of\ the\ wall=2\ m[As\ here\ width\ and\ height\ are\ the\ same\ thing]\\Hence,\\Area\ of\ the\ wall=8.5*2=17\ m^2](/tpl/images/1010/9188/38d16.png)
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A door 2m*1m is fixed on a wall. The wall is 8.5 long and 2m high. Find the cost of whitewashing the...
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