Which shape will appear in the fifth element of this sequence?
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Which shape will appear in the fifth element of this sequence?
Is there a term-to-term rule for the sequence below?
18 , 22 , 26 , 30
Look for systematic changes between consecutive figures. In this sequence, notice that each figure has a circle at top, a vertical line, and X-shaped crossings that increase by one each time.
Focus on the most obvious pattern first. Here, the number of X-crossings is the main pattern - the line length changes too, but that's just to accommodate more crossings.
Count carefully! The 5th figure should have 4 X-crossings (since the pattern goes 0, 1, 2, 3, 4...). Look for the answer with exactly 4 X-marks below the circle.
That's the starting point of the pattern! Just like counting 0, 1, 2, 3... the sequence begins with zero crossings and adds one more each time.
Go back and count systematically: Point to each X-crossing and count aloud. Make sure you're looking at the crossings, not just the individual diagonal lines.
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