Final answer:
Direct proportionality between magnitudes explained with examples.
Explanation:
Directly proportional magnitudes vary in such a way that when one magnitudes increases or decreases, the other changes in the same direction. For example, distance traveled and time spent are directly proportional; as time increases, distance covered also increases. Similarly, velocity of a car and time of arrival exhibit direct proportionality - the faster the velocity, the shorter the time taken to arrive. On the other hand, number of workers and time to complete a task are not directly proportional as adding more workers might not always reduce the time taken.
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