Multiple choice

Each question below contains a statement followed by Quantity I and Quantity II. Find both to find the relationship among them. Mark your answer accordingly. Quantity I: A hovercraft can run 60km/h on still water but due to ocean current its speed is reduced by 20%. And speed on land is 40km/h. find the average speed if its runs same time in ocean and on land? Quantity II: A man drive a car in 4×400m track of a ground. If he completed two and one fourth of round in 5 min 24 sec. Then speed of car is?

  1. Quantity I > Quantity II

  2. Quantity I ≥ Quantity II

  3. Quantity II > Quantity I

  4. Quantity II ≥ Quantity I

  5. Quantity I = Quantity II or Relation cannot be established
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Quantity I: Hovercraft speed in still water = 60 km/h. With 20% reduction in ocean: 60 × 0.8 = 48 km/h. Land speed = 40 km/h. When equal time is spent on both, average speed = (48 + 40) / 2 = 44 km/h. Quantity II: Track is 4 × 400m = 1600m per lap. Distance covered = 2.25 × 1600 = 3600m = 3.6 km. Time = 5 min 24 sec = 324 sec = 0.09 hours. Speed = 3.6 / 0.09 = 40 km/h. Since 44 > 40, Quantity I is greater.

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