Given below is a figure of a square transparent sheet with a pattern: the square is divided vertically by a dotted line into left and right halves; each half shows, from top to bottom, a small circle (0), a V shape, and a V shape. Which one of the following is the correct figure showing how the pattern would appear after folding the above mentioned transparent sheet at the dotted line?
- AFigure: folded strip showing, top to bottom: 0, V, V
- BFigure: folded strip showing, top to bottom: 0, V, V, V, V
- CFigure: folded strip showing 0<< (0 with two arrowheads)
- DFigure: folded strip showing, top to bottom: 0 inverted, V inverted
Explanation
Folding the transparent sheet along the vertical dotted line superimposes the two halves. The circle and the V shapes are all symmetric about a vertical axis, so each coincides exactly with its mirror image instead of producing doubled or distorted marks. The folded strip therefore shows the same top-to-bottom pattern: circle, V, V. Hence option (A) is correct.