I bought a pack of 100 rectangular index cards. Each card measured 15 cm by 10cm. The pack said: paper density = 200 GSM (grams per square metre). This means that a square metre of these cards weighs 200 g. a All the cards in the pack are placed flat on a table without overlap. In square metres, what is the total area of the table covered by the cards? b Each pack of cards is wrapped in a sheet of 50 GSM paper with area 800 cm². I have a number of packs and wish to store them on a shelf which cannot hold more than 10 kg. What is the largest whole number of wrapped packs that can be stored? c The total weight of 500 identical sheets of paper is 2.4 kg. If each sheet measures 30 cm by 20 cm, what is its paper density in GSM? d A business card measures 55 mm by 90 mm. Its paper density is 300 GSM. Find its exact weight in grams.
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15000cm^2
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