Multiple choice

Each question below contains a statement followed by Quantity I and Quantity II. You have to find the correct relationship. $Quantity I: If Raghav can travel 45 km downstream in 5 hours and 60 km upstream in 15 hours. Then find the speed of the boat in still water. Quantity II: If Raghav can travel 56 km downstream in 7 hours and the speed of the stream is 2.5 km/h. Then find the Speed of boat in still water.$

  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 relation cannot be established
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Quantity I: Downstream speed = 45/5 = 9 km/h, upstream speed = 60/15 = 4 km/h. Boat speed = (9+4)/2 = 6.5 km/h. Quantity II: Downstream speed = 56/7 = 8 km/h, stream speed = 2.5 km/h. Boat speed = 8 - 2.5 = 5.5 km/h. Therefore Quantity I (6.5) > Quantity II (5.5).

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