GCSE Maths Practice: direct-proportion

Question 2 of 10

Identify which examples maintain direct proportion between time and distance.

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\( \begin{array}{l}\text{Which of the following show direct proportion between distance and time (at constant speed)?}\end{array} \)

Select all correct options:

\( \text{2 hours → 60 km, 4 hours → 120 km} \) \( \text{3 hours → 90 km, 6 hours → 200 km} \) \( \text{1.5 hours → 45 km, 3 hours → 90 km} \) \( \text{5 hours → 100 km, 10 hours → 200 km} \)

Multiply distance per hour by time to check consistency.

Check that distance doubles when time doubles for direct proportion.