alleryFacing N,a robot turns90°left/right before moving1,2,3,4,5m in order. Exactly2 turns are right; it ends7m W,6m N. Which turns are right?
A1 and3
B2 and3
C3 and4
D1 and4
Answer & Solution
Correct answer: D. 1 and4
The headings must be E,N,W,N,W, so only turns1 and4 are right.
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