Averages

  • Small tomato seedlings in yellow pots.
    problem

    Partial Means

    Age
    14 to 16
    Challenge level

    From the mean of 64 numbers, and the mean of the first 36 of these numbers, can you work out the mean of the last 28 numbers?

  • Mediant madness
    problem

    Mediant Madness

    Age
    14 to 16
    Challenge level

    Kyle and his teacher disagree about his test score - who is right?

  • Tyneside Average Speed
    problem

    Tyneside Average Speed

    Age
    14 to 16
    Challenge level

    Can you work out the average speed of the van?

  • Small pepper seedlings in orange pots.
    problem

    Average Surroundings

    Age
    14 to 16
    Challenge level

    Can you work out Ali's age based on the diagram?

  • Small tomato seedlings in yellow pots.
    problem

    Dopey Measurement

    Age
    14 to 16
    Challenge level

    How does Snow White need to change her result after the mix-up?

  • Small tomato seedlings in yellow pots.
    problem

    Maximum Mean

    Age
    14 to 16
    Challenge level

    What is the largest that the mean of these numbers could be?

  • Small tomato seedlings in yellow pots.
    problem

    Changing Averages

    Age
    14 to 16
    Challenge level

    Find the value of $m$ from these statements about a group of numbers

  • Small tomato seedlings in pink pots.
    problem

    Marathon Mission

    Age
    14 to 16
    Challenge level

    Minnie trained more for the London Marathon this year, so her speed increased. By what percentage did her time decrease?

  • David and Goliath
    problem

    David and Goliath

    Age
    14 to 18
    Challenge level

    Does weight confer an advantage to shot putters?

  • Top marks
    problem

    Top Marks

    Age
    16 to 18
    Challenge level

    Can you make all of these statements about averages true at the same time?

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