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CBSE Class 9 Answered

Find the cost of white washing the four walls of a room with dimensions 5 m 4m 3m at the rate of Rs. 12/m2.
Asked by Topperlearning User | 03 Apr, 2014, 12:35: PM
answered-by-expert Expert Answer

Area of four walls= 2(l + b)h                    (ceiling and floor is not to be included)

= 2 3 (5 + 4)

= 6 9

= 54 m2

Cost @ Rs. 12/m2 = Rs. 54 12

= Rs 648

Answered by | 03 Apr, 2014, 02:35: PM

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