Question

At the p.e. class, pupils help each other measure heights. the average height of jeremy and justin is 147 cm. jeremy is 24 cm taller than justin. what is the height of jeremy?

Answers

  1. The height of Jeremy is 159 cm.

    What is average?

    • In layman’s terms, an average is a single number chosen to represent a set of numbers, typically the sum of the numbers divided by the number of numbers in the set (the arithmetic mean).
    • The average of the numbers 2, 3, 4, 7, and 9 (summed to 25) is 5, for example.
    • An average could be another statistic, such as the median or mode, depending on the context.
    To find the height of Jeremy:
    • The formula of average = sum of terms/number of terms
    • Let, Justin, be x and Jeremy be x + 24
    So,
    • 147 = x + (x+24) / 2
    • 2x + 24 = 147 × 2
    • 2x + 24 = 294
    • 2x = 294 – 24
    • 2x = 270
    • x = 135
    Then, Jeremy = 135 + 24 = 159 cm.
    Therefore, the height of Jeremy is 159 cm.
    Know more about average here:
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