GCSE Maths Practice: percentage-change

Question 10 of 10

Measured length = 37 cm, actual = 40 cm. Find percentage error (1 dp).

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\( \begin{array}{l} \text{Measured length = 37 cm, actual = 40 cm.} \\ \text{Percentage error (1 dp)?} \end{array} \)

Choose one option:

\( \text{7.5%} \) \( \text{7%} \) \( \text{8%} \)

Round to 1 decimal place.

Use formula: |Measured - Actual| ÷ Actual × 100