Question

A man starts from a point and moves $3$ km North, then turns to West and goes $2$ km. He turns North and walks $1$ km and then moves $5$ km towards East. How far is he from the starting point?

• A. $11$ km
• B. $10$ km
• C. $8$ km
• D. $5$ km

Answer 1

The correct option is D $5$ km


In right triangle $AEF,$
$AF=\sqrt{A{E}^2+E{F}^2}=\sqrt{4^2+3^2}=5$ km