The weight of the £5 or 500 pence will be 300 grams or 0.3 Kg and this will be determined by using the unitary method.
Given :
5p coins weigh approximately 3 grams.
The value of £1 = 100 pence. Therefore, the value of £5 = 500 pence.
Now, it is given in the problem that 5 pence coins weigh approximately 3 grams. Therefore, the weight of the 500 pence can be determined by using the unitary method:
= 300 gram
The weight of the 500 pence will be 300 grams. Now, convert the weight of 500 pence in Kg, that is:
= 0.3 Kg
So, the weight of £5 worth of 5p coins in Kg will be 0.3 Kg.
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