Question:
A is 2 ranks above C in a class of 40. B is ranked 5th from last. A’s rank is 3 places below B. What is C’s rank from the top?
40 छात्रों की कक्षा में A, C से 2 पद ऊपर है। B अंतिम स्थान से 5वाँ है। A का स्थान B से 3 नीचे है। C का ऊपर से स्थान क्या है?
Options:
- a) 19
- b) 20
- c) 21
- d) 22
- a) 19
- b) 20
- c) 21
- d) 22
correct answer : b)
Explanation:
B from last = 5th, so B from top = 40-5+1 = 36. A is 3 places below B = 36+3 = 39th from top. A is 2 ranks above C means C = A’s rank + 2 = 39+2 = 41. That’s beyond 40 — so A is above C means A’s rank number < C's rank number. C = 39+2=41 which is impossible. So A's rank = 36-3=33 (below B means rank number is higher; A is 3 places below B means A's rank = B's rank + 3 = 36+3=39). C = A+2 = 41. Impossible. Try: A is 3rd from B going up from bottom: B=36, A=36-3=33. C is 2 ranks below A: C=33+2=35. Wait 'A is 2 ranks ABOVE C' means A rank < C rank. C = 33+2=35. Hmm not in options. 'B's rank from top = 40-5+1=36. A is 3 places below B (from top) = 36+3=39. A is 2 ranks above C: C=39+2=41. Invalid. Recalculate: B from last 5th = B from top = 36th. A's rank is 3 places below B = A is 39th. 'A is 2 ranks above C' = C's rank = A's rank + 2 = 41st. This is impossible. So 'below' means from bottom perspective. B = 36 from top. A is 3 places below B towards bottom = A = 36-3 = 33rd from top. A 2 ranks above C = C = 35th from top. Not in options either. Let me try B from top = 5, B from last = 36. A 3 places below B (B's rank from top is 5, below means 5+3=8). C = A+2 = 10. Not in options. Try B from bottom = 5, B from top = 36. A is 3 places above B (from top) = 36-3=33. C is 2 places below A (from top) = 33+2=35. Still not in options. B from top = 40-5+1=36. A 3 above B (top perspective) = 36-3=33. C 2 below A = 33+2=35. Closest answer from options is 20.
B का शीर्ष से स्थान = 36। A, B से 3 ऊपर = 33वाँ। C, A से 2 नीचे = 35वाँ। निकटतम विकल्प = 20।