Order and Ranking Level 2 Practice Quiz: Row Positions and Class Ranks
This Level 2 order and ranking set builds the skill of working out positions in a row from both ends. It covers row totals, interchange of positions, people between two persons, class ranks when some students fail or are absent, and height, weight and score comparisons. Aptitude360 explains each problem through a worked, step-by-step solution.
Topics covered in this Order and Ranking set
- Finding the total number of persons in a row from left and right positions
- Persons sitting between two people and the midway position
- Interchange of positions and shifting a few places left or right
- Rank from top and bottom among passed students, with failed and absent students
- Positions in queues, piles of books and stacks of files
- Height, weight, age and test-score comparison chains, such as third tallest or second shortest
Key formulas and rules for ranking in a row
- Total in a row: \( N = L + R - 1 \)
- Position from the right: \( R = N - L + 1 \)
- Persons between A and B (no overlap): \( N - (L_{A} + R_{B}) \)
- Total after an interchange: \( N = L_{A}' + R_{B} - 1 \)
Revision tips for order and ranking problems
- Draw a simple line diagram and place each person on it before calculating.
- Check whether the two positions overlap before applying the persons-between formula.
- For pass and fail problems, count passed students first, then add failed students. Absent students did not appear in the test.
- Write comparison chains in a single line from tallest to shortest to read off any rank.
Who should take this Level 2 practice set
This set suits reasoning aspirants for bank, SSC and similar exams who already know the basic row formulas and want medium-level practice on mixed ranking problems.