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QuestionMathsClass 8

A suitcase with measures $${8}{c}{m}{x}{48}{c}{m}\times{24}{c}{m}$$ is to be covered with a tarpaulin cloth. How many metres of tarpaulin of width $${96}{c}{m}$$ is required to cover 100 such suitcases?

Surface area of 1 suitcase=2(lb+bh+hl)

=2(80*48+48*24+80*24)

=13824$${c}{m}^{{2}}$$

Surface area of 100 suitcase=1382400

Area to cover suitcase=L*B

1382400=L*96

L=14400 cm

L=144 m.