Saturday, January 17, 2009

Posted by Poh at 1:39 PM 3 comments

'Easy' Question

Peter has a robot , if he press 'A' key of the robot ,it moves 1 step forward.If he press 'B' key of the robot, it moves 2 steps forward.If he press 'C' key of the robot it moves 3 steps forward.
If Peter wants the robot to move forward 1 step, there is only a way.
If Peter wants the robot to move forward 2 step, there are 2 way.

a)Peter wants his robot to move forward 10 steps, how many way(s) can the robot move forward ?

b)Peter wants his robot to move forward 15 steps, how many way(s) can the robot move forward ?
Posted by Poh at 1:22 PM Labels: 2 comments

Medium Question

How many ways to go from P to R,passing the point Q?
Posted by Poh at 1:17 PM Labels: 5 comments

Easy Question

How many triangles are there in the diagram shown at the right?
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