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Shanti Sweets Stall was placingan order for making cardboard boxes for packing their sweets. Two sizes ofboxes were required. The bigger of dimensions `25" "c m" "xx" "20" "c m" "xx" "5c m`and the smaller of dimensions `15" "c m" "xx" "

Answer» Surface area of one bigger box =`2(25xx20xx20xx5+5xx25)`
1450 `cm^(2)`
By adding 5% overlaps =1450+72.5=1522.5 `cm^(2)`
Area for 250 bigger boxes =1522.5`xx`250 `cm^(2)`
cost for 250 bigger boxes =`1522.5xx250xx(4)/(1000)`=Rs 1522.5
Surface area of one smaller box =`2(15xx12+12xx5+xx15)=630 cm^(2)`
By adding 5% for overlaps =630+31.5=661.5 `cm^(2)`
Area for 250 small boxes =`661.5xx250xx(4)/(1000)=Rs 661.5`
Total cost =1522.5+661.5=Rs 2184


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