WBCS.LIVE practice question

A person travels 3 km North, then 4 km East. How far is he from the starting point?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 7 km
  2. 1 km
  3. 5 km
  4. 12 km

Correct answer and explanation

Correct answer: 5 km

Explanation: ✅ Correct Answer: (C) 5 km 📚 Explanation: Step-1: Understand that the movements North and East form a right-angled triangle. The distance from the starting point is the hypotenuse. Step-2: Use the Pythagoras Theorem: a² + b² = c². Here, 3² + 4² = c². 9 + 16 = 25. Step-3: c = √25 = 5. Therefore, the person is 5 km away from the starting point.