Question 4
The figure illustrates a staircase which has 2 steps.
A staircase that Nick and Mike are playing has 21 steps. They count the steps; one from bottom to top and the other from top to bottom. They meet at one step which Nick indicates as the 10th. As which number does Mike indicate this step?
A staircase that Nick and Mike are playing has 21 steps. They count the steps; one from bottom to top and the other from top to bottom. They meet at one step which Nick indicates as the 10th. As which number does Mike indicate this step?