Question

the thickness of one sheet of cardboard is given as 485 multiply by 10mm. a construction worker uses 75 sheets of the cardboard , stacked together , to insulate a wall

[1] show that the extact thickness of the insulation is 363.75 mm .

Answer 1

Total thickness of sheets of the cardboard stacked together = 75 × 485 × 10 mm = 363750 mm.

So, thickness of insulation = 363750 mm/1000 = 363.75 mm

Hence, shown.

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