2017 CJC J2 MYE Q13
2017 CJC J2 MYE Q13
Mid Year Exam
- Jack needs to drive through a series of roads to get to his work place from home. The diagram above shows the map of his possible routes. He can choose to travel northwards or eastwards at each junction.
- Find the number of different routes Jack can take.
- Jack received information over the radio about a traffic accident at intersection \(X\), and wishes to avoid the intersection. Find the number of different routes he can now take.
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Answer:(ii) \(126\) (iii) \(106\)
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