Question

If D goes 25 meter towards west, took a left turn and walked 45 m. He again took left turn and walked 30 m. Again turned left and walked 33 m. How far is he from starting point?

• A. 5 m
• B. 8 m
• C. 13 m
• D. 12 m

Answer 1

Answer:

C. 13 m

$O{B}^2=O{A}^2+A{B}^2$

$={12}^2+5^2=144+25$

$=169$

$OB=\sqrt{169}=13m$