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Mathematics, 06.11.2019 20:31 corlissquillen13

[electricity bill charges :
first 100 units - 24p per unit
remaining units - 16p per unit]

mrs watt checks her electricity bill.
here are her meter readings :

new readings - 7143 units
old readings - 6997 units

calculate the cost of the number of units used?

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Answers: 1

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[electricity bill charges :
first 100 units - 24p per unit
remaining units - 16p per un...
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