Ranking / order / height

1. Ye topic hai kya?

Line ya class mein kaun kitne number pe, ya unchai/umar mein kaun upar. Seat-puzzle nahi — yahan rank numbers aur “taller than”.

Sitting se farq

Sitting: A, B ke immediate left. Yahan: 7th from left, 12th from bottom. Circle/bench Analytical Reasoning pe.

Teen paper types

Rank: top/bottom, left/right
Beech / swap: kitne log, jagah badli
Height: A > B > C, tallest/shortest

2. Paper pe dimag kaise chale

Teen formulae:
1) Total = left-rank + right-rank − 1
(ya top + bottom − 1)
2) Doosri taraf se rank = Total − is taraf + 1
3) Beech kitne = |rank₁ − rank₂| − 1
(dono ranks ek hi taraf se hon — dono left, ya dono top)

Galati: ek rank left se, ek right se, seedha minus. Pehle dono ko ek taraf lao, phir beech.

Left = line ka shuru (tumhari left agar line saamne ho — paper “from the left” = counting start left end). Rank 1 = pehla us end se.

3. Ek aadmi — do taraf se

Same aadmi, left se 7th = right se kya, jab total pata ho.

RamL7 · R14

…

20 log, Ram left se 7. Right se = 20 − 7 + 1 = 14.

Basic · convert

Q1. 20 bacchon ki line. Ram left se 7th. Right se kaun sa number?

Solution shuru

Step 1
Right = Total − left + 1 = 20 − 7 + 1 = 14.

Final answer — yahan khatam14th from right

Basic · total

Q2. Sita class mein top se 15th, bottom se 12th. Class mein kitne students?

Solution shuru

Step 1
Total = 15 + 12 − 1 = 26. (−1 kyunki Sita do baar gin jaati.)

Final answer — yahan khatam26

Basic · neeche kitne

Q3. 50 students. Ravi top se 18th. Usse neeche kitne?

Solution shuru

Step 1
Neeche = Total − uska rank = 50 − 18 = 32. (Khud mat gino.)

Final answer — yahan khatam32

4. Do log — beech kitne

Basic · same side

Q4. A left se 10th, B left se 15th. Beech kitne?

Solution shuru

Step 1
Dono left se. |15 − 10| − 1 = 4.

Final answer — yahan khatam4

Medium · mix sides

Q5. Line mein 20 log. A left se 8th, B right se 9th. Beech kitne?

Solution shuru

Step 1 — B ko left lao
B left se = 20 − 9 + 1 = 12th.
Step 2
|12 − 8| − 1 = 3.

Final answer — yahan khatam3

Medium · 5 above

Q6. Class 40. Ek ladka bottom se 12th hai. Jo usse 5 ranks upar (top ki taraf better) hai, woh top se kaun sa?

Solution shuru

Step 1
12th from bottom → top se = 40 − 12 + 1 = 29th.
Step 2
5 ranks upar (better) = rank 29 − 5 = 24th from top.

Final answer — yahan khatam24th from top

5. Interchange — jagah badli

A aur B seat badalte hain. A ab B ki purani jagah pe hai. Jo naya rank A ka diya, woh B ka purana rank us taraf se.

Pro · swap total

Q7. A left se 12th, B right se 8th. Jagah badli to A left se 15th ho gaya. Line mein kitne log?

Solution shuru

Step 1
Swap ke baad A, B ki purani seat pe. To B left se 15th tha.
Step 2
B: left 15, right 8. Total = 15 + 8 − 1 = 22.
Step 3 — check
A pehle left 12. Swap ke baad B wahan: B left se 12. Uske right = 22 − 12 + 1 = 11. Poora nahi poocha, lekin numbers fit.

Final answer — yahan khatam22

Medium · swap baad

Q8. 30 ki line. A left se 11th, B right se 10th. Swap. B ab right se kaun sa?

Solution shuru

Step 1
B ab A ki purani seat pe = left se 11th.
Step 2
Right se = 30 − 11 + 1 = 20th.

Final answer — yahan khatam20th from right

6. Height / age / marks — comparison

Same trick: chain banao, > = uncha / bada / zyada marks. “Not as tall as C” = C se chhota. 3k:2k umar, sum, “n saal pehle” — Age.

Galati: “A is not the tallest” se A ko shortest mat banao. Sirf itna: koi aur A se uncha hai.

Basic · chain

Q9. P, Q se uncha. Q, R se uncha. S, P se uncha. Sabse uncha kaun?

Solution shuru

Step 1
S > P > Q > R.

Final answer — yahan khatamS

Medium · “not as tall”

Q10. A, B se uncha lekin C jitna uncha nahi. D, B se chhota. Sabse uncha?

Solution shuru

Step 1
A > B, aur C > A (not as tall as C). D < B.
Step 2
C > A > B > D. Tallest = C.

Final answer — yahan khatamC

7. Pro checklist

Total = ek taraf + doosri − 1.
Beech: pehle dono ranks same end se.
Swap: naya rank = doosre ki purani seat.
“Above” rank = chhota number from top (better).
Height: saari lines ko ek chain; jo lock na ho use open chhodho.
Immediate left sitting nahi — woh alag topic.

8. Practice

Pehle khud socho, phir neeche solution kholo. Q1–Q10 yahan nahi dohraaye.

Basic

Practice 1. 35 ki line. Meena right se 9th. Left se?

Solution shuru

Step 1
35 − 9 + 1 = 27th from left.

Final answer — yahan khatam27th from left

Basic

Practice 2. Amit top se 9th, bottom se 21st. Total?

Solution shuru

Step 1
9 + 21 − 1 = 29.

Final answer — yahan khatam29

Basic

Practice 3. P left se 6th, Q left se 19th. Beech kitne?

Solution shuru

Step 1
|19 − 6| − 1 = 12.

Final answer — yahan khatam12

Medium

Practice 4. 25 log. X left se 7th, Y right se 11th. Beech kitne?

Solution shuru

Step 1
Y left se = 25 − 11 + 1 = 15th.
Step 2
|15 − 7| − 1 = 7.

Final answer — yahan khatam7

Medium

Practice 5. 40 students. Neha bottom se 8th. Usse 3 ranks upar wala top se kaun sa?

Solution shuru

Step 1
Neha top se = 40 − 8 + 1 = 33rd.
Step 2
3 better = 33 − 3 = 30th from top.

Final answer — yahan khatam30th from top

Pro

Practice 6. A left se 9th, B right se 12th. Swap ke baad A left se 17th. Total?

Solution shuru

Step 1
A ab B ki seat pe → B left se 17th tha.
Step 2
Total = 17 + 12 − 1 = 28.

Final answer — yahan khatam28

Basic

Practice 7. E, F se chhota. F, G se chhota. H, E se chhota. Sabse chhota?

Solution shuru

Step 1
G > F > E > H. Shortest = H.

Final answer — yahan khatamH

Medium

Practice 8. Anita, Babita se unchi. Babita, Chitra se unchi. Deepa, Anita se unchi. Sabse chhoti?

Solution shuru

Step 1
Deepa > Anita > Babita > Chitra. Youngest = Chitra.

Final answer — yahan khatamChitra

Pro

Practice 9. Sita top se 8th. Gita usse neeche hai, beech mein 5 ladkiyan, aur Gita bottom se 18th. Total ladkiyan?

Solution shuru

Step 1
Gita neeche = Sita ke baad. Gita top se = 8 + 5 + 1 = 14th.
Step 2
Total = 14 + 18 − 1 = 31.

Final answer — yahan khatam31

Pro

Practice 10. Line mein A left se 16th, B right se 16th. Total 30. Beech kitne? Dono overlap to kya?

Solution shuru

Step 1
B left se = 30 − 16 + 1 = 15th. A left 16, B left 15.
Step 2
|16 − 15| − 1 = 0. Beech koi nahi — padosi. Overlap nahi (alag seats). Agar dono ranks same left number hote to same aadmi.

Final answer — yahan khatam0 (beech koi nahi)

9. Itna kaafi hai kya?

Agar total = a+b−1, mix-side ko ek taraf laa ke beech, swap pe purani seat, aur height chain lock kar sako — to JA/CA-II ke ranking/height sawaal basic se pro tak attempt ho sakte hain.

Agle topic: Sitting arrangement.