Question

A cuboidal room has a length of 28 metres and a width of 16 metres. The volume of air in the room is 2240 cubic metres. What will be the cost of painting the side walls of the room if the painting rate is Rs. 32 per square metre?

A Rs. 16,200
B Rs. 13,840
C Rs. 17,200
D Rs. 14,080
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