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Directions: Given below are two quantities named I and II. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose among the possible answers.Quantity I: 6 kmphQuantity II: A boat sails in still water at 13 km/h, but takes five times as long to sail upstream than downstream. Find the speed of the stream.1. Quantity I ˃ Quantity II2. Quantity I ˂ Quantity II3. Quantity I ≥ Quantity II4. Quantity II ≥ Quantity I5. Quantity II = Quantity I |
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Answer» Correct Answer - Option 2 : Quantity I ˂ Quantity II Quantity I: 3 kmph Quantity II: Speed of boat = 13 km/h Let the speed of the stream be x km/h ⇒ Downstream speed = (13 + x) ⇒ Upstream speed = (13 - x) According to the question, (13 + x) = 5 × (13 - x) ⇒ 13 + x = 65 - 5x ⇒ 13 - 65 = -5x - x ⇒ 52 = 6x ⇒ x = 8.66 Speed of stream = 8.66 kmph ∴ Quantity I ˂ Quantity II |
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