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3 years ago

Electricity Bill Charges

Mathematics

1 answer:

masya89 [10]3 years ago

6 0

Answer:

a) 293 units

b) £57.95

Step-by-step explanation:

New reading: 6538 units

Old reading : 6245 units

The amount use is the difference between the two readings.

6538 - 6245 = 293

Answer: 293 units

293 is the same as 200 units plus another 93 units.

The first 200 units are charged at 22p per unit

Cost of the first 200 units: 200 units * 22p/unit = 4400p

Remaining units are charged at 15p per unit

Cost of the additional 93 units: 93 units * 15p/unit = 1395p

Total charge: 4400p + 1395p = 5795p = £57.95

Answer: £57.95

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