Maths Olympiad Prep

Library / UKMT Junior Kangaroo /57 of 243

UKMT Junior Kangaroo, 2023

Combinatorics Difficulty 1.0 Junior Find the answer United Kingdom

Nico is learning to drive. He knows how to turn right but has not yet learned how to turn left. What is the smallest number of right turns he could make to travel from P to Q, moving first in the direction shown?

(A) 33 (B) 44 (C) 66 (D) 88 (E) 1010

Figure for this problem

We don't reproduce this publisher's solutions. Their own solution is here — work the problem first.
Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.