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David's room is 8 m long, 7 m wide and 9...

David's room is 8 m long, 7 m wide and 9 m high. He wants to paint his room red. The cost of painting 1 `m^(2)` area is Rs. 2.50.
The cost of painting the room is

A

Rs.815

B

Rs.825

C

Rs.835

D

Rs.945

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