a) The total weight of 500 identical sheets of paper is 2.4 kg. If each
sheet measures 30cm by 20 cm, what is its paper density in GSM?
b) A business card measures 55mm by 90mm. Its paper density is 300
GSM. Find its exact weight in grams.
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Answer:
Step-by-step explanation:
Finding the surface area of a single sheet
Area = length * width
Area = 0.3 m * 0.21 m
Area = 0.063 m^2
How many times it is narrower than one m^2?
Number of times = 1 m^2 / 0.063 m^2
Number of times = 15.873
Finding for the mass of one sheet of paper
mass of one sheet = mass of 1 m^2 of paper / number of times narrower
mass of one sheet = 0.080 kg / 15.873
mass of one sheet = 0.00504 kg or 5.04 g
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