The internal measures of a cubonidal room are length 12 m, breath 8 m and height 4m. Find the total cost of white washing all four walls and ceiling at the rate of Rs. 5 per m2.
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Step-by-step explanation:
TSA = 2 (BH+HL) + LB
= 2 (8*4 + 4*12) + 12*8
= 2 (32 + 48 ) + 96
=2 * 80 + 96
= 160 + 96
= 256 m²
PLZ MARK BRAINLIST
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