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    PracticeAQA GCSEAQA GCSE Physics Higher Tier Paper 1Question 02.5
    Easy2 marksStructured
    EnergyHigherCalculationPercentages

    AQA GCSE · Question 02.5 · Energy

    Nuclear power stations do not generate electricity every day of the year.
    One nuclear power station generated electricity for 92% of a year.
    one year = 365 days
    Calculate the number of days during the year that the nuclear power station generated electricity.

    How to approach this question

    1. Convert the percentage (92%) into a decimal by dividing by 100. 2. Multiply this decimal by the total number of days in a year (365). 3. The result is the number of days the station was operational.

    Full Answer

    1. Find 92% of 365 days: Number of days = 0.92 × 365 2. Calculate the result: Number of days = 335.8 days Rounding to the nearest whole day gives 336 days.
    The question asks for 92% of 365 days. To calculate this, we first convert the percentage to a decimal: 92% = 92 / 100 = 0.92 Then, we multiply this decimal by the total number of days: Number of days = 0.92 × 365 = 335.8 days. Since the number of days should likely be an integer, rounding to the nearest whole number gives 336 days. Both 335.8 and 336 are acceptable answers.

    Common mistakes

    ✗ Dividing 365 by 92. ✗ Calculation errors. ✗ Incorrectly converting the percentage to a decimal.
    Question 02.4All questionsQuestion 03.1

    Practice the full AQA GCSE Physics Higher Tier Paper 1

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