Question

For a function , road facing wall is to be painted in different colours . 18m 85cm length of wall is to be painted in red colour. 18360 mm is to be painted in yellow colour and 17.96 m is to be painted in blue colour . What length of the wall is to be painted please let send me answer ​

Answer 1

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Area to be painted = area of the walls + area of ceiling

=2(hl+hb)+lb

=[2×(7×15+7×10)+(15×10)]=500 sq m

No. of cans required =

100

500

=5

Hence, 5 cans are required to paint the walls and the ceiling of the cuboidal hall.