On a simple grid map with north at the top, starting at the southwest corner, which sequence of moves reaches the northeast corner: north then east, or east then north?

On a simple grid map with north at the top, starting at the southwest corner, which sequence of moves reaches the northeast corner: north then east, or east then north?

• A. East, then north
• B. North, then east
• C. North only
• D. East only

Answer: (B)

To reach the northeast corner from the southwest on a simple grid, you need to move toward the top and toward the right by one step each. If you move north first, you go from the southwest corner to the northwest corner, then one more move east takes you to the northeast corner. This path shows climbing up to the top edge first, then crossing to the far right. (Going east first would take you to the southeast corner first, and then north to the northeast; the end point is the same, but the route described by moving north first follows the natural progression toward the top edge before moving across.)

To reach the northeast corner from the southwest on a simple grid, you need to move toward the top and toward the right by one step each. If you move north first, you go from the southwest corner to the northwest corner, then one more move east takes you to the northeast corner. This path shows climbing up to the top edge first, then crossing to the far right. (Going east first would take you to the southeast corner first, and then north to the northeast; the end point is the same, but the route described by moving north first follows the natural progression toward the top edge before moving across.)