Multiple choice

Passage

Directions: The following question consists of two quantities, Quantity I and Quantity II. You are to compare the two quantities and find the correct relationship between both of these quantities.

Quantity I: Speed of boat in still water, if a man can travel 48 km downstream in 8 hours and 80 km upstream in 20 hours. Quantity II: Speed of boat in still water, if a man can travel 25 km downstream in 5 hours and the speed of stream, is 1 kmph.

  1. Quantity I > Quantity II

  2. Quantity I < Quantity II

  3. Quantity I ≥ Quantity II

  4. Quantity I ≤ Quantity II

  5. Quantity I = Quantity II, or No relation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Q1: Downstream speed = 48/8 = 6 kmph. Upstream speed = 80/20 = 4 kmph. Still water speed = (6+4)/2 = 5 kmph. Q2: Downstream speed = 25/5 = 5 kmph. Stream speed = 1 kmph. Still water speed = 5 - 1 = 4 kmph. Q1 > Q2.

AI explanation

For Quantity I, the downstream speed is 48 / 8 = 6 kmph and the upstream speed is 80 / 20 = 4 kmph, making the boat's speed in still water (6 + 4) / 2 = 5 kmph. For Quantity II, the downstream speed is 25 / 5 = 5 kmph, and since the stream speed is 1 kmph, the boat's speed in still water is 5 - 1 = 4 kmph. Since 5 kmph is greater than 4 kmph, Quantity I is greater than Quantity II. The result is Quantity I > Quantity II.

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