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Question 1: A mobile phone goes on sale for 88% off. The sale price is £42, calculate the original price. |

Question 2: The population of Mathsville has grown by 87% over 10 years to 7,193,890. What was the population of Mathsville 10 years ago? |

Question 3: An investment in the stock market decreases by 85% in 3 years to £1,398 How much money was invested? |

Question 4: Jacob joins a company and a year later receives a 3.5% pay rise, taking their annual salary to £26,910. Calculate their starting salary. |

Question 5: Oscar buys a new car that has an annual depreciation rate of 22%. A year later, the car is worth £21,060. How much did they pay for the car? |

Question 6: Alfie earns £1,007.50 per month after tax. Their earnings are taxed at 35%. Calculate their gross monthly earnings before tax. |

Question 7: Alyssa pays £904.75 for a mattress. The price includes VAT at 17.5%. Calculate the price excluding VAT. |

Question 8: A laptop goes on sale for 20% off. A further clearance sale then reduces the sale price by 30% down to £330.40, calculate the original price. |

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# Answers

Question 1: £350 |

Question 2: 3,847,000 people |

Question 3: £9,320 |

Question 4: £26,000 |

Question 5: £27,000 |

Question 6: £1,550 |

Question 7: £770 |

Question 8: £590 |