Question
Two express trains depart from city X and city Y at the
same time, approaching one another. Train X moves at 90 km/h and Train Y at 60 km/h. They cross paths after 2.2 hours. Find how far apart the two cities are.Solution
ATQ,
Distance by Train X = 90 × 2.2 = 198 km
Distance by Train Y = 60 × 2.2 = 132 km
Total distance = 198 + 132 = 330 km
Unit less measure of dispersion is
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