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Lesson 6 of 7 · Single row, facing one direction

Conditional change

Linear Arrangement · for IPMAT Indore, IPMAT Rohtak and JIPMAT

The idea of Single row, facing one direction

People (or cars, books, bulbs) sit in one row, all facing the same way, usually north, so their left and right are ours. Clues give exact gaps (third to the right, two between), ends and neighbours. Rohtak asked a car row in 2020 (Q18-19) and JIPMAT a nine-friend row in 2026 (Q11) and a stack of books in 2023 (Q23); a stack is a row turned upright (top = right end).

The exam method

  1. Anchor. the end or middle clue first.
  2. Blocks. "J is next to O, O is third to the left of K" is one block J O _ _ K.
  3. Two cases. if a block can sit in two places, draw both rows; the next clue usually removes one.
  4. Answer from the final row,. writing it once at the top of the page.