EM-1084
Direct proportion
E Math · Secondary 3 · Easy · Direct proportion
A runner burns 420 kcal by running 7 km. Assuming calories burnt are directly proportional to distance, how many calories will he burn if he runs 4.5 km?
- 180 kcal
- 240 kcal
- 270 kcal
- 315 kcal
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