This math topic focuses on calculating time required for travel given various speeds and distances. It explores problems involving different units of measurement for speed (m/s, mm/min, mm/d, km/s, cm/min, mm/hr, m/ms) and distance (km, m, mm, cm). Each problem requires conversion between units and application of the formula for time, utilizing algebra with variables representing different quantities. The skills practiced include unit conversion, solving for time in the context of speed and distance, and handling varied units within complex word problems in an advanced context of speed, distance, and time.
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A car drives for Z m at R km/s. How many s does it take?