Another car takes 18 seconds to travel $$\(400 \mathrm{~m}\)$$ along this road. Calculate the average speed of this car in $$\(\mathrm{km} / \mathrm{h}\)$$. .................................... $$\(\mathrm{km} / \mathrm{h}\)$$
Exam No：0580_w20_qp_43 Year：2020 Question No：3(b)
Answer:
80
Knowledge points:
E1.11.3 Calculate average speed. (Use ratio and scales in practical situations.)
E5.1 Use current units of mass, length, area, volume and capacity in practical situations and express quantities in terms of larger or smaller units. (Convert between units including units of area and volume.)
Solution:
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