Banking Exams Reasoning — Question 1830

Question

A boy walks 4 km towards East and then 3 km towards North. What is the shortest distance from his starting point?

  1. 5 km
  2. 7 km
  3. 6 km
  4. 4 km

Correct answer

A — 5 km

Explanation (English)

The displacement forms a right triangle with legs 4 and 3. Shortest distance = sqrt(4^2 + 3^2) = sqrt(25) = 5 km.

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