1.

The internal measures of a cuboidal room are with length as 12 m, breadth as 8 m and height as 10 m. The total cost (in Rs.) of whitewashing all four walls of the room and also ceiling of the room, if the cost of whitewashing is Rs. 25 per m2, is:

A. 12,400
B. 13,600
C. 18,000
D. 12,000
Answer» B. 13,600


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