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Rashid [163]
3 years ago
8

Calculate the number of gallons of paint needed to cover the walls of a room 11'X12'X8'. each gallon covers 300 square feet

Mathematics
1 answer:
lakkis [162]3 years ago
5 0
No. of gallons required = csa of cuboid+area of rectangle/300
                                     = 2(l+b)h + l*b /300
                                     = 2(11+12)8 +11 *12 /300
                                     =368+132/300
                                     = 500/300
                                     =5/3  =1.666.... =1.7
                                     = 2 approx.
therefore  2 gallons should be used
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