Answer :
Final answer:
£80 worth of 2p coins totals 4000 coins. Each 2p coin weighs 7 grams, so the total weight is 4000 coins times 7 grams or 28000 grams. This converts to 28 kg.
Explanation:
The question is asking for the total mass of £80 worth of 2p coins given that each 2p coin has a mass of 7 grams. To solve this, first, we have to identify how many 2p coins make up £80. One pound (100 pennies) can be divided into fifty 2p coins. So, £80 is equivalent to 80 * 50 = 4000 2p coins. If each 2p coin has a mass of 7 grams, then the total mass for all the 2p coins will be 4000 times 7g, which equals 28000 grams. As 1000 grams make a kilogram, 28000 grams is equal to 28 kG. Therefore, £80 worth of 2p coins would weigh 28 kg.
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