Page 92 - NUMINO Challenge_C2

Problem solving

1 Ryan is taking a taxi from his house to the airport. Key Points
All the roads are one-way streets in the direction
of the arrows. Find the number of shortest paths Redraw the diagram
from Ryan’s house to the airport. leaving out the
roads that Ryan
must not take.

House

Airport

2 The colored area of the map below is a river and Remove the roads
the lines represent roads. Find the number of that must not be
shortest paths from the house to the school. taken.

School

House

89Number of Outcomes