Question

A man goes $15m$ due west and then $8m$ due north. How far is he from the straight point?

• A. $17m$
• B. $19m$
• C. $18m$
• D. $20m$

Answer 1

The correct option is A $17m$

The least distance between the start and the end point can be calculated by the square sum root of the two distances travelled since north and west directions are perpendicular to each. hence,
Least distance = $\sqrt{({15}^2+8^2)}$
Least distance = 17 m