General mental ability by Dr. R S Aggarwal – Direction sense test- East West North South.
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Here’s a focused explanation and practice set based on “Direction Sense Test” from General Mental Ability by Dr. R.S. Aggarwal, specifically covering East-West-North-South logic:
🧭 Direction Sense Test – Basics
This topic tests your ability to trace and understand movement in terms of directions and calculate final positions.
🧠 Key Concepts:
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Main Directions:
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North ↕️
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South ↕️
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East ↔️
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West ↔️
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Intercardinal Directions:
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North-East (NE), North-West (NW)
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South-East (SE), South-West (SW)
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Turning Logic:
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From North:
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Left ➝ West, Right ➝ East
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From East:
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Left ➝ North, Right ➝ South
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From South:
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Left ➝ East, Right ➝ West
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From West:
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Left ➝ South, Right ➝ North
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✏️ Example-Based Explanation:
🔍 Example 1:
A man walks 5 km North, then turns right and walks 3 km. He again turns right and walks 5 km. What direction is he facing now?
📌 Solution:
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5 km North ➝ facing North
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Turn Right ➝ East ➝ 3 km
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Turn Right ➝ South ➝ 5 km
📌 Final direction = South ✅
🔍 Example 2:
Ravi walked 10 meters towards East. Then he turned right and walked 5 meters. Then again he turned right and walked 10 meters. What is the direction he is facing now?
📌 Solution:
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10 m East
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Right turn ➝ South ➝ 5 m
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Right turn ➝ West ➝ 10 m
📌 Facing: West ✅
🧩 Practice Questions:
Q1.
Sita walks 3 km towards North. Then she turns left and walks 4 km. Again she turns left and walks 3 km. How far is she from the starting point?
Options:
A) 4 km
B) 3 km
C) 7 km
D) 5 km
👉 Answer: A) 4 km
(Forms a rectangle: 3 km North → 4 km West → 3 km South → distance from starting point = 4 km)
Q2.
A person walks 6 km towards South, then turns to his left and walks 8 km. What is the direction he is facing now?
Answer: 👉 East
(South → Left ➝ East)
📘 Tips to Solve Quickly:
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Draw arrows for each movement.
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Track left/right turns logically.
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Use Pythagoras theorem if asked for distance.
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Memorize the 4-turn table for quick conversion.
📚 From R.S. Aggarwal’s Book:
This topic is covered in:
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Chapter: Direction Sense Test
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Under section: Logical Reasoning
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Exercises include 30–50 objective questions with varying complexity.
Would you like:
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✅ A PDF-style practice worksheet?
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🎥 Visual explanation/video script for YouTube?
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📊 Interactive quiz for mobile or online use?
Let me know how you’d like to continue your prep!