Page 101 - NUMINO Challenge_B2

Type 11-2 Shortest Paths in a Classroom

Jane’s classroom is shown on the right. Jane Window
is right next to the door and Lisa is standing
right next to the window. If Jane wants to ask Door
Lisa a question, what is the number of
shortest paths that Jane can take to reach
Lisa?

1 Draw all the paths that Jane can take.

Lisa

Jane

2 Use the figure from 1 to find the number of shortest paths.

3 Find the number of shortest paths from A to C if you must pass through B.

A

B
C

98 NUMINO Challenge B2