AQA · Mathematics · 8300

GCSE Maths: Money: Reading meters

Ratio & Proportion · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Money: Reading meters (Corbettmaths Video 400), and every card links back to the exact page it came from. Practice tests generate fresh variations of these questions, so the numbers change every attempt. Source material © Corbettmaths — used with attribution.

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  1. How do you calculate the total cost of a hire with a fixed cost plus a daily rate?

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    Fixed cost + (daily rate × number of days). E.g. £10 + 7 × £9 = £73 for a week.

  2. Electricity costs 39p per unit. What does 1608 units cost in pounds?

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    £627.12 (1608 × 39p = 62 712p, then ÷ 100 to convert pence to pounds).

  3. How do you convert a total in pence to pounds?

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    Divide by 100. E.g. 62 712p = £627.12.

  4. How do you find the amount still owed after paying a deposit?

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    Total cost − deposit. E.g. 9 days × £125 = £1125, minus a £500 deposit leaves £625.

  5. How many monthly payments are made over 5 years?

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    60 (5 × 12 months).

  6. A £28 000 car is paid at £425 a month for 5 years. What is the final payment?

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    £2500. Monthly payments total 60 × £425 = £25 500; £28 000 − £25 500 = £2500.

  7. How is a bill with a fixed monthly charge and a per-unit charge calculated?

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    (Fixed charge × number of months) + (units used × cost per unit).

  8. Electricity: £12 fixed charge per month plus 35p per unit. Cost for a year using 1452 units?

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    £652.20 (12 × £12 = £144, plus 1452 × £0.35 = £508.20).

  9. How do you find the number of hours hired from a total bill with a fixed charge?

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    Subtract the fixed charge, then divide by the hourly rate. E.g. (£288.75 − £50) ÷ £47.75 = 5 hours.

  10. How do you find the units used from two meter readings?

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    Subtract the earlier reading from the later reading (new − old).

  11. A car had mileage 19 883 when hired and 20 666 when returned. How many miles were driven?

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    783 miles (20 666 − 19 883).

  12. Car hire: £55 a day for 9 days, 783 miles driven, 72p per mile over 500. Total cost?

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    £698.76. Daily cost 9 × £55 = £495; 283 extra miles × £0.72 = £203.76; £495 + £203.76.

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