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A cuboidal box 90 cm ×50 …

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A cuboidal box 90 cm ×50 cm×35 cm is to be covered with metal sheet. How many metres of sheet of width 94 cm is required to cover 50 such boxes?

Posted by Sundram Jha 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years ago

Find the total surface area of 1 box:

Total surface area = 2( 90x50 + 50x35 + 35x90) = 18800 cm²

Find the total surface area of 50 boxes:

1 box = 18800 cm²

50 boxes = 18800 x 50 = 940000 cm²

Find the length of the sheet needed:

Length = 940000 ÷ 94 = 10000 cm = 100 m

Answer: 100 m

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