Identify the figure given in the options which when put in place of the question mark (?) will logically complete the series.

- (a)

- (b)

- (c)

- (d)

Answer
Why
Correct — B. Rule: the whole arrow turns 45° anticlockwise each frame.
Frame 1 points up, frame 2 up-left, frame 3 left, frame 4 down-left.
Frame 5 continues the turn to straight down, with the double bar — which sits at the tail and rotates with the arrow — now at the top.
Option (b) shows exactly that. It is also frame 1 turned through 180°, which is what four steps of 45° must produce.
Why the others are wrong
- (a)It points right, which is 135° anticlockwise from frame 4 — three steps of the turn taken in one go instead of one.
- (c)It points down-right: the right rule applied one step too far. Down-right is the sixth figure of the series, not the fifth.
- (d)It points up with the double bar at the foot, which is frame 1 reproduced unchanged. The series has turned a full 180° since then.
Concept
Single-object figural series become easy once you decide what to measure.
Nothing here is added, removed or shaded — one rigid arrow turns, so the only quantity in play is its bearing.
Read the four given frames as a sequence — up, up-left, left, down-left — check that the step is constant at 45° anticlockwise, then extend it once.
The double bar turning with the arrow is what tells you the whole object rotates, not just the head.
A 45° step returns the object to its starting bearing after eight frames, so four steps from frame 1 puts frame 5 exactly upside down. That is faster to see than measuring angles.
Key facts
- The turn is 45° anticlockwise per frame: up, up-left, left, down-left, down.
- Frame 5 is frame 1 rotated 180°, because four steps of 45° make a half turn.
- The double bar sits at the tail and rotates with the arrow, opposite the head in every frame.
Study next
Common traps
- Reading the turn as clockwise because the arrowhead is travelling down the page
- Extending by 90° instead of 45° and landing on the wrong side of vertical
- Taking the figure one step too far — down-right is the sixth term, not the fifth
SSC runs these as four frames and a question mark, with every wrong option the same arrow at a different bearing, so the item reduces to the step size and the direction of turn. The same shift runs a five-symbol, two-rule series at Reasoning Q.8.
Related PYQs
No directly related past PYQ was found.