Multiple choice

Directions: Compare the two quantities in A and B. Mr. X covered a part of his journey at a speed of 40 kmph and the rest at a speed of 50 kmph. Mr. Y covered a part of his journey at a speed of 50 kmph and the rest at a speed of 40 kmph. Quantity A Quantity B Average speed of x Average speed of y

  1. Quantity A is greater than quantity B.

  2. Quantity B is greater than quantity A.

  3. Both quantities are equal.

  4. The relationship between the quantities cannot be determined.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Average speed depends on the distance covered at each speed. Since the problem does not specify the distance covered at each speed (e.g., is it half the distance or half the time?), the average speed cannot be determined.

AI explanation

The average speed for a journey depends on both the individual speeds and the proportion of distance or time spent traveling at each speed. The problem states the individuals covered parts of their journeys at these speeds, but it provides no information about how long each part lasted or their exact distances. Therefore, a specific average speed cannot be calculated, and the relationship cannot be determined.

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