1.

A room is 6.2 m long , 3.8 m wide and 3.2 m high . It has 2 doors each 2m × 1.2 m and 2 windows each 1.2 m × 1.5 m . Find the cost of white-washing it's wall at the rate of rs 10 per square meter

Answer»

Here AREA of WHITE washing =
l \times b + \\ b \times h + h \times l - \\ (2 \times 2 \times 1.2 + 2 \times \\ 1.2 \times 1.5)
After all calculations u will GET area and then just multiple with 10 to get cost of white washing



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