How many puzzle pieces are in the wooden box under the gravity grain bins?

How many puzzle pieces are in the wooden box under the gravity grain bins?

• A. 4
• B. 6
• C. 5
• D. 2

Answer: (C)

Counting items in a diagram where some are hidden is what's being tested. To find the total, start with every piece you can see in the wooden box. Then look for pieces that must be there but aren’t fully visible because they’re tucked under the gravity grain bins or behind other pieces. Use the shapes and how they fit together to infer these hidden pieces without double-counting anything. When you add the visible pieces to the pieces you can reasonably deduce are present, you arrive at five in total. If you try other counts, you either would have to ignore visible clues or force pieces into gaps that don’t match the arrangement, which doesn’t hold up with what’s shown.

Counting items in a diagram where some are hidden is what's being tested. To find the total, start with every piece you can see in the wooden box. Then look for pieces that must be there but aren’t fully visible because they’re tucked under the gravity grain bins or behind other pieces. Use the shapes and how they fit together to infer these hidden pieces without double-counting anything. When you add the visible pieces to the pieces you can reasonably deduce are present, you arrive at five in total. If you try other counts, you either would have to ignore visible clues or force pieces into gaps that don’t match the arrangement, which doesn’t hold up with what’s shown.